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Kumaran Rajaram

2006-May-19 07:36 UTC

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

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Paul,=20
=20
I have been using kopenibnal (against OpenIB 1.8.0) and Lustre has been stable
on Mellanox memfree cards (since 1.4.3). On Mellanox mem-based cards, Lustre
mounts fine although crashes during large I/O. See #7246 on ClusterFS bugzilla
for more info. Not sure if what you see is related to this.=20
=20
HTH,=20
-Kums=20
=20>>>PAulN <pauln@psc.edu> 10/26/05 7:19 pm >>>The kopenibnal crashes when lconf tries to set a proc value.
I remember seeing a warning during compilation, I guess it wasn''t a
joke.
Has anyone else come across this? I''m running a older version of lustre
so
this may already be fixed..

is anyone even using the kopenibnal?
paul

during lconf:

Service: network NET_ost1_openib NET_ost1_openib_UUID
NETWORK: NET_ost1_openib NET_ost1_openib_UUID openib ost1 988
+ lustre/utils/lctl
 network openib
 mynid ost1
 quit
+ sysctl /proc/sys/openibnal/port 988
Killed
....

Oct 26 21:11:02 ost1 kernel: Lustre: Filtering OBD driver;
info@clusterfs.com
Oct 26 21:11:07 ost1 kernel: Lustre:
1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK:
pid:1512 port:988 backlog:127
Oct 26 21:11:07 ost1 kernel: Lustre:
1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK:
pid:1512 port:988 backlog:127
Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer
dereference at 0000000000000000 RIP:
Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer
dereference at 0000000000000000 RIP:
Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0
Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0
Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP
Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP
Oct 26 21:11:07 ost1 kernel: CPU 0
Oct 26 21:11:07 ost1 kernel: CPU 0
Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc
obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal kptlrou
ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl
mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc
obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal kptlrou
ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl
mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted
2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted
2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>]
<ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>]
<ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c
RCX: ffffffffa01e0b2c
Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c
RCX: ffffffffa01e0b2c
Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004
RDI: 0000000000000003
Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004
RDI: 0000000000000003
Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8
R09: 0000000000000000
Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8
R09: 0000000000000000
Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246
R12: 0000000000000001
Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246
R12: 0000000000000001
Oct 26 21:11:07 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000
R15: 0000000000000001
Oct 26 21:11:08 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000
R15: 0000000000000001
Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000)
GS:ffffffff806057c0(0000) knlGS:0000000000000000
Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000)
GS:ffffffff806057c0(0000) knlGS:0000000000000000
Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000
CR4: 00000000000006e0
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000
CR4: 00000000000006e0
Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo
0000010074096000, task 000001007df3f070)
Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo
0000010074096000, task 000001007df3f070)
Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000
0000002a99c2d000 000001007e0249c0
Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000
0000002a99c2d000 000001007e0249c0
Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001
0000000000000000 ffffffff80162e30
Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001
0000000000000000 ffffffff80162e30
Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28
Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28
Oct 26 21:11:08 ost1 kernel: Call
Trace:<ffffffff80162e30>{handle_mm_fault+368}
<ffffffff8017b5b5>{vfs_fstat+133}
Oct 26 21:11:08 ost1 kernel: Call
Trace:<ffffffff80162e30>{handle_mm_fault+368}
<ffffffff8017b5b5>{vfs_fstat+133}
Oct 26 21:11:08 ost1 kernel:      =20
<ffffffff802b865b>{rb_insert_color+107}
<ffffffff8013c9da>{proc_dointvec+26}
Oct 26 21:11:08 ost1 kernel:      =20
<ffffffff802b865b>{rb_insert_color+107}
<ffffffff8013c9da>{proc_dointvec+26}
Oct 26 21:11:08 ost1 kernel:      =20
<ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191}
Oct 26 21:11:08 ost1 kernel:      =20
<ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191}
Oct 26 21:11:08 ost1 kernel:        <ffffffff8013c2a9>{do_rw_proc+153}
<ffffffff801722d7>{vfs_write+199}
Oct 26 21:11:08 ost1 kernel:        <ffffffff8013c2a9>{do_rw_proc+153}
<ffffffff801722d7>{vfs_write+199}
Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83}
<ffffffff801105d6>{system_call+126}
Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83}
<ffffffff801105d6>{system_call+126}
Oct 26 21:11:08 ost1 kernel:      =20
Oct 26 21:11:08 ost1 kernel:      =20
Oct 26 21:11:08 ost1 kernel:
Oct 26 21:11:08 ost1 kernel:
Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff
0f 94 c0 85 c2 74 10 66
Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff
0f 94 c0 85 c2 74 10 66
Oct 26 21:11:08 ost1 kernel: RIP
<ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
Oct 26 21:11:08 ost1 kernel: RIP
<ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000



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    <DIV>      Paul&#44;
    </DIV>
    <DIV>&nbsp;</DIV>
    <DIV>I have been using kopenibnal &#40;against OpenIB
1.8.0&#41; and Lustre has been stable on Mellanox memfree cards
&#40;since 1.4.3&#41;. On Mellanox mem-based cards&#44; Lustre
mounts fine although crashes during large I/O. See &#35;7246 on ClusterFS
bugzilla for more info. Not sure if what you see is related to this.
    </DIV>
    <DIV>&nbsp;</DIV>
    <DIV>HTH&#44;
    </DIV>
    <DIV>-Kums
    </DIV>
    <DIV>&nbsp;</DIV>
    <DIV>&gt;&gt;&gt;PAulN &lt;pauln@psc.edu&gt;
10/26/05 7:19 pm &gt;&gt;&gt;<br>The kopenibnal crashes when
lconf tries to set a proc value.<br>I remember seeing a warning during
compilation&#44; I guess it wasn&#39;t a joke.<br>Has anyone else
come across this&#63; I&#39;m running a older version of lustre
so<br>this may already be fixed..<br><br>is anyone even using
the kopenibnal&#63;<br>paul<br><br>during
lconf:<br><br>Service: network NET_ost1_openib
NET_ost1_openib_UUID<br>NETWORK: NET_ost1_openib NET_ost1_openib_UUID
openib ost1 988<br>&#43; lustre/utils/lctl<br>&#160;network
openib<br>&#160;mynid ost1<br>&#160;quit<br>&#43;
sysctl /proc/sys/openibnal/port
988<br>Killed<br>....<br><br>Oct 26 21:11:02 ost1
kernel: Lustre: Filtering OBD
driver&#59;<br>info@clusterfs.com<br>Oct 26 21:11:07 ost1
kernel:
Lustre:<br>1511:0:&#40;openibnal.c:792:kibnal_start_ip_listener&#40;&#41;&#41;
Listener started OK:<br>pid:1512 port:988 backlog:127<br>Oct 26
21:11:07 ost1 kernel:
Lustre:<br>1511:0:&#40;openibnal.c:792:kibnal_start_ip_listener&#40;&#41;&#41;
Listener started OK:<br>pid:1512 port:988 backlog:127<br>Oct 26
21:11:07 ost1 kernel: Unable to handle kernel NULL pointer<br>dereference
at 0000000000000000 RIP:<br>Oct 26 21:11:07 ost1 kernel: Unable to handle
kernel NULL pointer<br>dereference at 0000000000000000 RIP:<br>Oct
26 21:11:07 ost1 kernel:
&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>Oct
26 21:11:07 ost1 kernel:
&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>Oct
26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0<br>Oct 26
21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0<br>Oct 26 21:11:07
ost1 kernel: Oops: 0000 &#91;1&#93; SMP<br>Oct 26 21:11:07 ost1
kernel: Oops: 0000 &#91;1&#93; SMP<br>Oct 26 21:11:07 ost1 kernel:
CPU 0<br>Oct 26 21:11:07 ost1 kernel: CPU 0<br>Oct 26 21:11:07 ost1
kernel: Modules linked in: mds lov osc mdc<br>obdfilter fsfilt_ldiskfs
ldiskfs ost ptlrpc obdclass lvfs kopenibnal kptlrou<br>ter portals libcfs
aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl<br>mod_thh mod_hh
mod_mpga mod_vapi_common mosal ib_dm_client
ib_sa_client<br>ib_client_query ib_cm ib_poll ib_mad ib_core ib_services
md<br>Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc
mdc<br>obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs
kopenibnal kptlrou<br>ter portals libcfs aic79xx ib_useraccess ib_tavor
mod_vapi mod_vipkl<br>mod_thh mod_hh mod_mpga mod_vapi_common mosal
ib_dm_client ib_sa_client<br>ib_client_query ib_cm ib_poll ib_mad ib_core
ib_services md<br>Oct 26 21:11:07 ost1 kernel: Pid: 1463&#44; comm:
python Not
tainted<br>2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln<br>Oct 26
21:11:07 ost1 kernel: Pid: 1463&#44; comm: python Not
tainted<br>2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln<br>Oct 26
21:11:07 ost1 kernel: RIP:
0010:&#91;&lt;ffffffff8013c66a&gt;&#93;<br>&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>Oct
26 21:11:07 ost1 kernel: RIP:
0010:&#91;&lt;ffffffff8013c66a&gt;&#93;<br>&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>Oct
26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8&#160;&nbsp;EFLAGS:
00010206<br>Oct 26 21:11:07 ost1 kernel: RSP:
0018:0000010074097db8&#160;&nbsp;EFLAGS: 00010206<br>Oct 26
21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c<br>RCX:
ffffffffa01e0b2c<br>Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc
RBX: ffffffffa01e0b2c<br>RCX: ffffffffa01e0b2c<br>Oct 26 21:11:07
ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004<br>RDI:
0000000000000003<br>Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880
RSI: 0000000000000004<br>RDI: 0000000000000003<br>Oct 26 21:11:07
ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8<br>R09:
0000000000000000<br>Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000
R08: 0000010074097ed8<br>R09: 0000000000000000<br>Oct 26 21:11:07
ost1 kernel: R10: 0000000000000000 R11: 0000000000000246<br>R12:
0000000000000001<br>Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000
R11: 0000000000000246<br>R12: 0000000000000001<br>Oct 26 21:11:07
ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000<br>R15:
0000000000000001<br>Oct 26 21:11:08 ost1 kernel: R13: 0000010074097ed8
R14: 0000000000000000<br>R15: 0000000000000001<br>Oct 26 21:11:08
ost1 kernel:
FS:&#160;&nbsp;0000002a95f59ca0&#40;0000&#41;<br>GS:ffffffff806057c0&#40;0000&#41;
knlGS:0000000000000000<br>Oct 26 21:11:08 ost1 kernel:
FS:&#160;&nbsp;0000002a95f59ca0&#40;0000&#41;<br>GS:ffffffff806057c0&#40;0000&#41;
knlGS:0000000000000000<br>Oct 26 21:11:08 ost1 kernel:
CS:&#160;&nbsp;0010 DS: 0000 ES: 0000
CR0:<br>000000008005003b<br>Oct 26 21:11:08 ost1 kernel:
CS:&#160;&nbsp;0010 DS: 0000 ES: 0000
CR0:<br>000000008005003b<br>Oct 26 21:11:08 ost1 kernel: CR2:
0000000000000000 CR3: 0000000000101000<br>CR4:
00000000000006e0<br>Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
CR3: 0000000000101000<br>CR4: 00000000000006e0<br>Oct 26 21:11:08
ost1 kernel: Process python &#40;pid: 1463&#44;
threadinfo<br>0000010074096000&#44; task
000001007df3f070&#41;<br>Oct 26 21:11:08 ost1 kernel: Process python
&#40;pid: 1463&#44; threadinfo<br>0000010074096000&#44; task
000001007df3f070&#41;<br>Oct 26 21:11:08 ost1 kernel: Stack:
0000000100000200 0000000100000000<br>0000002a99c2d000
000001007e0249c0<br>Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200
0000000100000000<br>0000002a99c2d000 000001007e0249c0<br>Oct 26
21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;00000100739a4058
0000000000000001<br>0000000000000000 ffffffff80162e30<br>Oct 26
21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;00000100739a4058
0000000000000001<br>0000000000000000 ffffffff80162e30<br>Oct 26
21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;000001007452d100
000001007e024a28<br>Oct 26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;000001007452d100
000001007e024a28<br>Oct 26 21:11:08 ost1 kernel:
Call<br>Trace:&lt;ffffffff80162e30&gt;&#123;handle_mm_fault&#43;368&#125;<br>&lt;ffffffff8017b5b5&gt;&#123;vfs_fstat&#43;133&#125;<br>Oct
26 21:11:08 ost1 kernel:
Call<br>Trace:&lt;ffffffff80162e30&gt;&#123;handle_mm_fault&#43;368&#125;<br>&lt;ffffffff8017b5b5&gt;&#123;vfs_fstat&#43;133&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>&lt;ffffffff802b865b&gt;&#123;rb_insert_color&#43;107&#125;<br>&lt;ffffffff8013c9da&gt;&#123;proc_dointvec&#43;26&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>&lt;ffffffff802b865b&gt;&#123;rb_insert_color&#43;107&#125;<br>&lt;ffffffff8013c9da&gt;&#123;proc_dointvec&#43;26&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>&lt;ffffffffa01c3a9f&gt;&#123;:kopenibnal:kibnal_listener_procint&#43;191&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>&lt;ffffffffa01c3a9f&gt;&#123;:kopenibnal:kibnal_listener_procint&#43;191&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff8013c2a9&gt;&#123;do_rw_proc&#43;153&#125;<br>&lt;ffffffff801722d7&gt;&#123;vfs_write&#43;199&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff8013c2a9&gt;&#123;do_rw_proc&#43;153&#125;<br>&lt;ffffffff801722d7&gt;&#123;vfs_write&#43;199&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff80172413&gt;&#123;sys_write&#43;83&#125;<br>&lt;ffffffff801105d6&gt;&#123;system_call&#43;126&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff80172413&gt;&#123;sys_write&#43;83&#125;<br>&lt;ffffffff801105d6&gt;&#123;system_call&#43;126&#125;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>Oct
26 21:11:08 ost1 kernel:<br>Oct 26 21:11:08 ost1 kernel:<br>Oct 26
21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff<br>0f 94
c0 85 c2 74 10 66<br>Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95
c2 31 c0 45 85 ff<br>0f 94 c0 85 c2 74 10 66<br>Oct 26 21:11:08 ost1
kernel:
RIP<br>&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;&nbsp;RSP
&lt;0000010074097db8&gt;<br>Oct 26 21:11:08 ost1 kernel:
RIP<br>&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;&nbsp;RSP
&lt;0000010074097db8&gt;<br>Oct 26 21:11:08 ost1 kernel: CR2:
0000000000000000<br>Oct 26 21:11:08 ost1 kernel: CR2:
0000000000000000<br><br><br><br>Lustre-discuss mailing
list<br>Lustre-discuss@lists.clusterfs.com<br>https://lists.clusterfs.com/mailman/listinfo/lustre-discuss<br>
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PAulN

2006-May-19 07:36 UTC

head link

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

hey Kums,
what tests have you been running to demonstrate stability?   Also, if 
you''re interested I have an
''enhanced'' version of the openibnal which allows routing
between
quadrics and ip networks.
I haven''t tested it on 1.4.x yet but it was working under lustre 
1.3.3.   As soon as I get this
proc_intvec bug figured out I''ll be able to test the openibnal router
on
1.4.2.  If it works ok
I''ll post the patch.
paul

Kumaran Rajaram wrote:
> Paul,
>  
> I have been using kopenibnal (against OpenIB 1.8.0) and Lustre has 
> been stable on Mellanox memfree cards (since 1.4.3). On Mellanox 
> mem-based cards, Lustre mounts fine although crashes during large I/O. 
> See #7246 on ClusterFS bugzilla for more info. Not sure if what you 
> see is related to this.
>  
> HTH,
> -Kums
>  
> >>>PAulN <pauln@psc.edu> 10/26/05 7:19 pm >>>
> The kopenibnal crashes when lconf tries to set a proc value.
> I remember seeing a warning during compilation, I guess it wasn''t
a joke.
> Has anyone else come across this? I''m running a older version of
lustre so
> this may already be fixed..
>
> is anyone even using the kopenibnal?
> paul
>
> during lconf:
>
> Service: network NET_ost1_openib NET_ost1_openib_UUID
> NETWORK: NET_ost1_openib NET_ost1_openib_UUID openib ost1 988
> + lustre/utils/lctl
>  network openib
>  mynid ost1
>  quit
> + sysctl /proc/sys/openibnal/port 988
> Killed
> ....
>
> Oct 26 21:11:02 ost1 kernel: Lustre: Filtering OBD driver;
> info@clusterfs.com
> Oct 26 21:11:07 ost1 kernel: Lustre:
> 1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK:
> pid:1512 port:988 backlog:127
> Oct 26 21:11:07 ost1 kernel: Lustre:
> 1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK:
> pid:1512 port:988 backlog:127
> Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer
> dereference at 0000000000000000 RIP:
> Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer
> dereference at 0000000000000000 RIP:
> Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
> Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
> Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0
> Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0
> Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP
> Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP
> Oct 26 21:11:07 ost1 kernel: CPU 0
> Oct 26 21:11:07 ost1 kernel: CPU 0
> Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc
> obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal 
> kptlrou
> ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl
> mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
> ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
> Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc
> obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal 
> kptlrou
> ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl
> mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
> ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
> Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted
> 2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
> Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted
> 2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
> Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>]
> <ffffffff8013c66a>{do_proc_dointvec+106}
> Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>]
> <ffffffff8013c66a>{do_proc_dointvec+106}
> Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
> Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
> Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c
> RCX: ffffffffa01e0b2c
> Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c
> RCX: ffffffffa01e0b2c
> Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004
> RDI: 0000000000000003
> Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004
> RDI: 0000000000000003
> Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8
> R09: 0000000000000000
> Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8
> R09: 0000000000000000
> Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246
> R12: 0000000000000001
> Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246
> R12: 0000000000000001
> Oct 26 21:11:07 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000
> R15: 0000000000000001
> Oct 26 21:11:08 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000
> R15: 0000000000000001
> Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000)
> GS:ffffffff806057c0(0000) knlGS:0000000000000000
> Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000)
> GS:ffffffff806057c0(0000) knlGS:0000000000000000
> Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
> 000000008005003b
> Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
> 000000008005003b
> Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000
> CR4: 00000000000006e0
> Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000
> CR4: 00000000000006e0
> Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo
> 0000010074096000, task 000001007df3f070)
> Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo
> 0000010074096000, task 000001007df3f070)
> Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000
> 0000002a99c2d000 000001007e0249c0
> Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000
> 0000002a99c2d000 000001007e0249c0
> Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001
> 0000000000000000 ffffffff80162e30
> Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001
> 0000000000000000 ffffffff80162e30
> Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28
> Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28
> Oct 26 21:11:08 ost1 kernel: Call
> Trace:<ffffffff80162e30>{handle_mm_fault+368}
> <ffffffff8017b5b5>{vfs_fstat+133}
> Oct 26 21:11:08 ost1 kernel: Call
> Trace:<ffffffff80162e30>{handle_mm_fault+368}
> <ffffffff8017b5b5>{vfs_fstat+133}
> Oct 26 21:11:08 ost1 kernel:       
> <ffffffff802b865b>{rb_insert_color+107}
> <ffffffff8013c9da>{proc_dointvec+26}
> Oct 26 21:11:08 ost1 kernel:       
> <ffffffff802b865b>{rb_insert_color+107}
> <ffffffff8013c9da>{proc_dointvec+26}
> Oct 26 21:11:08 ost1 kernel:       
> <ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191}
> Oct 26 21:11:08 ost1 kernel:       
> <ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191}
> Oct 26 21:11:08 ost1 kernel:       
<ffffffff8013c2a9>{do_rw_proc+153}
> <ffffffff801722d7>{vfs_write+199}
> Oct 26 21:11:08 ost1 kernel:       
<ffffffff8013c2a9>{do_rw_proc+153}
> <ffffffff801722d7>{vfs_write+199}
> Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83}
> <ffffffff801105d6>{system_call+126}
> Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83}
> <ffffffff801105d6>{system_call+126}
> Oct 26 21:11:08 ost1 kernel:       
> Oct 26 21:11:08 ost1 kernel:       
> Oct 26 21:11:08 ost1 kernel:
> Oct 26 21:11:08 ost1 kernel:
> Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff
> 0f 94 c0 85 c2 74 10 66
> Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff
> 0f 94 c0 85 c2 74 10 66
> Oct 26 21:11:08 ost1 kernel: RIP
> <ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
> Oct 26 21:11:08 ost1 kernel: RIP
> <ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
> Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
> Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
>
>
>
> Lustre-discuss mailing list
> Lustre-discuss@lists.clusterfs.com
> https://lists.clusterfs.com/mailman/listinfo/lustre-discuss

Kumaran Rajaram

2006-May-19 07:36 UTC

head link

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

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Content-Transfer-Encoding: quoted-printable

Paul,=20
=20
I have been running the following tests on largefiles (minimum 32G: read and
write per client)=20
i) sgp_dd=20
ii) bonnie=20
iii) iozone=20
iv) PIORAW parallel I/O test=20
=20
For metadata + many short file testing : Timing 2.6 kernel untar and build
process.=20

-Kums=20
>>>PAulN <pauln@psc.edu> 10/27/05 9:48 am >>>hey Kums,
what tests have you been running to demonstrate stability?   Also, if
you''re interested I have an
''enhanced'' version of the openibnal which allows routing
between
quadrics and ip networks.
I haven''t tested it on 1.4.x yet but it was working under lustre
1.3.3.   As soon as I get this
proc_intvec bug figured out I''ll be able to test the openibnal router
on
1.4.2.  If it works ok
I''ll post the patch.
paul

Kumaran Rajaram wrote:
>Paul,
>=20
>I have been using kopenibnal (against OpenIB 1.8.0) and Lustre has
>been stable on Mellanox memfree cards (since 1.4.3). On Mellanox
>mem-based cards, Lustre mounts fine although crashes during large I/O.
>See #7246 on ClusterFS bugzilla for more info. Not sure if what you
>see is related to this.
>=20
>HTH,
>-Kums
>=20
>>>>PAulN <pauln@psc.edu> 10/26/05 7:19 pm >>>
>The kopenibnal crashes when lconf tries to set a proc value.
>I remember seeing a warning during compilation, I guess it wasn''t a
joke.
>Has anyone else come across this? I''m running a older version of
lustre so
>this may already be fixed..
>
>is anyone even using the kopenibnal?
>paul
>
>during lconf:
>
>Service: network NET_ost1_openib NET_ost1_openib_UUID
>NETWORK: NET_ost1_openib NET_ost1_openib_UUID openib ost1 988
>+ lustre/utils/lctl
> network openib
> mynid ost1
> quit
>+ sysctl /proc/sys/openibnal/port 988
>Killed
>....
>
>Oct 26 21:11:02 ost1 kernel: Lustre: Filtering OBD driver;
>info@clusterfs.com
>Oct 26 21:11:07 ost1 kernel: Lustre:
>1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK:
>pid:1512 port:988 backlog:127
>Oct 26 21:11:07 ost1 kernel: Lustre:
>1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK:
>pid:1512 port:988 backlog:127
>Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer
>dereference at 0000000000000000 RIP:
>Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer
>dereference at 0000000000000000 RIP:
>Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
>Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
>Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0
>Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0
>Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP
>Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP
>Oct 26 21:11:07 ost1 kernel: CPU 0
>Oct 26 21:11:07 ost1 kernel: CPU 0
>Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc
>obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal
>kptlrou
>ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl
>mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
>ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
>Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc
>obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal
>kptlrou
>ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl
>mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
>ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
>Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted
>2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
>Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted
>2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
>Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>]
><ffffffff8013c66a>{do_proc_dointvec+106}
>Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>]
><ffffffff8013c66a>{do_proc_dointvec+106}
>Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
>Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
>Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c
>RCX: ffffffffa01e0b2c
>Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c
>RCX: ffffffffa01e0b2c
>Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004
>RDI: 0000000000000003
>Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004
>RDI: 0000000000000003
>Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8
>R09: 0000000000000000
>Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8
>R09: 0000000000000000
>Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246
>R12: 0000000000000001
>Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246
>R12: 0000000000000001
>Oct 26 21:11:07 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000
>R15: 0000000000000001
>Oct 26 21:11:08 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000
>R15: 0000000000000001
>Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000)
>GS:ffffffff806057c0(0000) knlGS:0000000000000000
>Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000)
>GS:ffffffff806057c0(0000) knlGS:0000000000000000
>Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
>000000008005003b
>Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
>000000008005003b
>Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000
>CR4: 00000000000006e0
>Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000
>CR4: 00000000000006e0
>Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo
>0000010074096000, task 000001007df3f070)
>Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo
>0000010074096000, task 000001007df3f070)
>Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000
>0000002a99c2d000 000001007e0249c0
>Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000
>0000002a99c2d000 000001007e0249c0
>Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001
>0000000000000000 ffffffff80162e30
>Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001
>0000000000000000 ffffffff80162e30
>Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28
>Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28
>Oct 26 21:11:08 ost1 kernel: Call
>Trace:<ffffffff80162e30>{handle_mm_fault+368}
><ffffffff8017b5b5>{vfs_fstat+133}
>Oct 26 21:11:08 ost1 kernel: Call
>Trace:<ffffffff80162e30>{handle_mm_fault+368}
><ffffffff8017b5b5>{vfs_fstat+133}
>Oct 26 21:11:08 ost1 kernel:     =20
><ffffffff802b865b>{rb_insert_color+107}
><ffffffff8013c9da>{proc_dointvec+26}
>Oct 26 21:11:08 ost1 kernel:     =20
><ffffffff802b865b>{rb_insert_color+107}
><ffffffff8013c9da>{proc_dointvec+26}
>Oct 26 21:11:08 ost1 kernel:     =20
><ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191}
>Oct 26 21:11:08 ost1 kernel:     =20
><ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191}
>Oct 26 21:11:08 ost1 kernel:        <ffffffff8013c2a9>{do_rw_proc+153}
><ffffffff801722d7>{vfs_write+199}
>Oct 26 21:11:08 ost1 kernel:        <ffffffff8013c2a9>{do_rw_proc+153}
><ffffffff801722d7>{vfs_write+199}
>Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83}
><ffffffff801105d6>{system_call+126}
>Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83}
><ffffffff801105d6>{system_call+126}
>Oct 26 21:11:08 ost1 kernel:     =20
>Oct 26 21:11:08 ost1 kernel:     =20
>Oct 26 21:11:08 ost1 kernel:
>Oct 26 21:11:08 ost1 kernel:
>Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff
>0f 94 c0 85 c2 74 10 66
>Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff
>0f 94 c0 85 c2 74 10 66
>Oct 26 21:11:08 ost1 kernel: RIP
><ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
>Oct 26 21:11:08 ost1 kernel: RIP
><ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
>Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
>Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
>
>
>
>Lustre-discuss mailing list
>Lustre-discuss@lists.clusterfs.com
>https://lists.clusterfs.com/mailman/listinfo/lustre-discuss




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    <DIV>      Paul&#44;
    </DIV>
    <DIV>&nbsp;</DIV>
    <DIV>I have been running the following tests on largefiles
&#40;minimum 32G: read and write per client&#41;
    </DIV>
    <DIV>i&#41; sgp_dd
    </DIV>
    <DIV>ii&#41; bonnie
    </DIV>
    <DIV>iii&#41; iozone
    </DIV>
    <DIV>iv&#41; PIORAW parallel I/O test
    </DIV>
    <DIV>&nbsp;</DIV>
    <DIV>For metadata &#43; many short file testing : Timing 2.6
kernel untar and build process.
    </DIV>
    <DIV><br>-Kums
    </DIV>
    <DIV><br>&gt;&gt;&gt;PAulN
&lt;pauln@psc.edu&gt; 10/27/05 9:48 am
&gt;&gt;&gt;<br>hey Kums&#44;<br>what tests have you
been running to demonstrate
stability&#63;&#160;&#160;&nbsp;Also&#44;
if<br>you&#39;re interested I have
an<br>&#39;enhanced&#39; version of the openibnal which allows
routing between<br>quadrics and ip networks.<br>I haven&#39;t
tested it on 1.4.x yet but it was working under
lustre<br>1.3.3.&#160;&#160;&nbsp;As soon as I get
this<br>proc_intvec bug figured out I&#39;ll be able to test the
openibnal router on<br>1.4.2.&#160;&nbsp;If it works
ok<br>I&#39;ll post the
patch.<br>paul<br><br>Kumaran Rajaram
wrote:<br><br>&gt;Paul&#44;<br>&gt;&#160;<br>&gt;I
have been using kopenibnal &#40;against OpenIB 1.8.0&#41; and Lustre
has<br>&gt;been stable on Mellanox memfree cards &#40;since
1.4.3&#41;. On Mellanox<br>&gt;mem-based cards&#44; Lustre
mounts fine although crashes during large I/O.<br>&gt;See
&#35;7246 on ClusterFS bugzilla for more info. Not sure if what
you<br>&gt;see is related to
this.<br>&gt;&#160;<br>&gt;HTH&#44;<br>&gt;-Kums<br>&gt;&#160;<br>&gt;&gt;&gt;&gt;PAulN
&lt;pauln@psc.edu&gt; 10/26/05 7:19 pm
&gt;&gt;&gt;<br>&gt;The kopenibnal crashes when lconf
tries to set a proc value.<br>&gt;I remember seeing a warning during
compilation&#44; I guess it wasn&#39;t a joke.<br>&gt;Has
anyone else come across this&#63; I&#39;m running a older version of
lustre so<br>&gt;this may already be
fixed..<br>&gt;<br>&gt;is anyone even using the
kopenibnal&#63;<br>&gt;paul<br>&gt;<br>&gt;during
lconf:<br>&gt;<br>&gt;Service: network NET_ost1_openib
NET_ost1_openib_UUID<br>&gt;NETWORK: NET_ost1_openib
NET_ost1_openib_UUID openib ost1 988<br>&gt;&#43;
lustre/utils/lctl<br>&gt;&#160;network
openib<br>&gt;&#160;mynid
ost1<br>&gt;&#160;quit<br>&gt;&#43; sysctl
/proc/sys/openibnal/port
988<br>&gt;Killed<br>&gt;....<br>&gt;<br>&gt;Oct
26 21:11:02 ost1 kernel: Lustre: Filtering OBD
driver&#59;<br>&gt;info@clusterfs.com<br>&gt;Oct 26
21:11:07 ost1 kernel:
Lustre:<br>&gt;1511:0:&#40;openibnal.c:792:kibnal_start_ip_listener&#40;&#41;&#41;
Listener started OK:<br>&gt;pid:1512 port:988
backlog:127<br>&gt;Oct 26 21:11:07 ost1 kernel:
Lustre:<br>&gt;1511:0:&#40;openibnal.c:792:kibnal_start_ip_listener&#40;&#41;&#41;
Listener started OK:<br>&gt;pid:1512 port:988
backlog:127<br>&gt;Oct 26 21:11:07 ost1 kernel: Unable to handle
kernel NULL pointer<br>&gt;dereference at 0000000000000000
RIP:<br>&gt;Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL
pointer<br>&gt;dereference at 0000000000000000
RIP:<br>&gt;Oct 26 21:11:07 ost1 kernel:
&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>&gt;Oct
26 21:11:07 ost1 kernel:
&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>&gt;Oct
26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0<br>&gt;Oct
26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0<br>&gt;Oct
26 21:11:07 ost1 kernel: Oops: 0000 &#91;1&#93; SMP<br>&gt;Oct
26 21:11:07 ost1 kernel: Oops: 0000 &#91;1&#93; SMP<br>&gt;Oct
26 21:11:07 ost1 kernel: CPU 0<br>&gt;Oct 26 21:11:07 ost1 kernel: CPU
0<br>&gt;Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc
mdc<br>&gt;obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs
kopenibnal<br>&gt;kptlrou<br>&gt;ter portals libcfs aic79xx
ib_useraccess ib_tavor mod_vapi mod_vipkl<br>&gt;mod_thh mod_hh
mod_mpga mod_vapi_common mosal ib_dm_client
ib_sa_client<br>&gt;ib_client_query ib_cm ib_poll ib_mad ib_core
ib_services md<br>&gt;Oct 26 21:11:07 ost1 kernel: Modules linked in:
mds lov osc mdc<br>&gt;obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc
obdclass lvfs kopenibnal<br>&gt;kptlrou<br>&gt;ter portals
libcfs aic79xx ib_useraccess ib_tavor mod_vapi
mod_vipkl<br>&gt;mod_thh mod_hh mod_mpga mod_vapi_common mosal
ib_dm_client ib_sa_client<br>&gt;ib_client_query ib_cm ib_poll ib_mad
ib_core ib_services md<br>&gt;Oct 26 21:11:07 ost1 kernel: Pid:
1463&#44; comm: python Not
tainted<br>&gt;2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln<br>&gt;Oct
26 21:11:07 ost1 kernel: Pid: 1463&#44; comm: python Not
tainted<br>&gt;2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln<br>&gt;Oct
26 21:11:07 ost1 kernel: RIP:
0010:&#91;&lt;ffffffff8013c66a&gt;&#93;<br>&gt;&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>&gt;Oct
26 21:11:07 ost1 kernel: RIP:
0010:&#91;&lt;ffffffff8013c66a&gt;&#93;<br>&gt;&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;<br>&gt;Oct
26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8&#160;&nbsp;EFLAGS:
00010206<br>&gt;Oct 26 21:11:07 ost1 kernel: RSP:
0018:0000010074097db8&#160;&nbsp;EFLAGS: 00010206<br>&gt;Oct
26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX:
ffffffffa01e0b2c<br>&gt;RCX: ffffffffa01e0b2c<br>&gt;Oct 26
21:11:07 ost1 kernel: RAX: 00000000000003dc RBX:
ffffffffa01e0b2c<br>&gt;RCX: ffffffffa01e0b2c<br>&gt;Oct 26
21:11:07 ost1 kernel: RDX: 000001007370d880 RSI:
0000000000000004<br>&gt;RDI: 0000000000000003<br>&gt;Oct 26
21:11:07 ost1 kernel: RDX: 000001007370d880 RSI:
0000000000000004<br>&gt;RDI: 0000000000000003<br>&gt;Oct 26
21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08:
0000010074097ed8<br>&gt;R09: 0000000000000000<br>&gt;Oct 26
21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08:
0000010074097ed8<br>&gt;R09: 0000000000000000<br>&gt;Oct 26
21:11:07 ost1 kernel: R10: 0000000000000000 R11:
0000000000000246<br>&gt;R12: 0000000000000001<br>&gt;Oct 26
21:11:07 ost1 kernel: R10: 0000000000000000 R11:
0000000000000246<br>&gt;R12: 0000000000000001<br>&gt;Oct 26
21:11:07 ost1 kernel: R13: 0000010074097ed8 R14:
0000000000000000<br>&gt;R15: 0000000000000001<br>&gt;Oct 26
21:11:08 ost1 kernel: R13: 0000010074097ed8 R14:
0000000000000000<br>&gt;R15: 0000000000000001<br>&gt;Oct 26
21:11:08 ost1 kernel:
FS:&#160;&nbsp;0000002a95f59ca0&#40;0000&#41;<br>&gt;GS:ffffffff806057c0&#40;0000&#41;
knlGS:0000000000000000<br>&gt;Oct 26 21:11:08 ost1 kernel:
FS:&#160;&nbsp;0000002a95f59ca0&#40;0000&#41;<br>&gt;GS:ffffffff806057c0&#40;0000&#41;
knlGS:0000000000000000<br>&gt;Oct 26 21:11:08 ost1 kernel:
CS:&#160;&nbsp;0010 DS: 0000 ES: 0000
CR0:<br>&gt;000000008005003b<br>&gt;Oct 26 21:11:08 ost1
kernel: CS:&#160;&nbsp;0010 DS: 0000 ES: 0000
CR0:<br>&gt;000000008005003b<br>&gt;Oct 26 21:11:08 ost1
kernel: CR2: 0000000000000000 CR3: 0000000000101000<br>&gt;CR4:
00000000000006e0<br>&gt;Oct 26 21:11:08 ost1 kernel: CR2:
0000000000000000 CR3: 0000000000101000<br>&gt;CR4:
00000000000006e0<br>&gt;Oct 26 21:11:08 ost1 kernel: Process python
&#40;pid: 1463&#44;
threadinfo<br>&gt;0000010074096000&#44; task
000001007df3f070&#41;<br>&gt;Oct 26 21:11:08 ost1 kernel: Process
python &#40;pid: 1463&#44;
threadinfo<br>&gt;0000010074096000&#44; task
000001007df3f070&#41;<br>&gt;Oct 26 21:11:08 ost1 kernel: Stack:
0000000100000200 0000000100000000<br>&gt;0000002a99c2d000
000001007e0249c0<br>&gt;Oct 26 21:11:08 ost1 kernel: Stack:
0000000100000200 0000000100000000<br>&gt;0000002a99c2d000
000001007e0249c0<br>&gt;Oct 26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;00000100739a4058
0000000000000001<br>&gt;0000000000000000
ffffffff80162e30<br>&gt;Oct 26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;00000100739a4058
0000000000000001<br>&gt;0000000000000000
ffffffff80162e30<br>&gt;Oct 26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;000001007452d100
000001007e024a28<br>&gt;Oct 26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;000001007452d100
000001007e024a28<br>&gt;Oct 26 21:11:08 ost1 kernel:
Call<br>&gt;Trace:&lt;ffffffff80162e30&gt;&#123;handle_mm_fault&#43;368&#125;<br>&gt;&lt;ffffffff8017b5b5&gt;&#123;vfs_fstat&#43;133&#125;<br>&gt;Oct
26 21:11:08 ost1 kernel:
Call<br>&gt;Trace:&lt;ffffffff80162e30&gt;&#123;handle_mm_fault&#43;368&#125;<br>&gt;&lt;ffffffff8017b5b5&gt;&#123;vfs_fstat&#43;133&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;<br>&gt;&lt;ffffffff802b865b&gt;&#123;rb_insert_color&#43;107&#125;<br>&gt;&lt;ffffffff8013c9da&gt;&#123;proc_dointvec&#43;26&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;<br>&gt;&lt;ffffffff802b865b&gt;&#123;rb_insert_color&#43;107&#125;<br>&gt;&lt;ffffffff8013c9da&gt;&#123;proc_dointvec&#43;26&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;<br>&gt;&lt;ffffffffa01c3a9f&gt;&#123;:kopenibnal:kibnal_listener_procint&#43;191&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;<br>&gt;&lt;ffffffffa01c3a9f&gt;&#123;:kopenibnal:kibnal_listener_procint&#43;191&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff8013c2a9&gt;&#123;do_rw_proc&#43;153&#125;<br>&gt;&lt;ffffffff801722d7&gt;&#123;vfs_write&#43;199&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff8013c2a9&gt;&#123;do_rw_proc&#43;153&#125;<br>&gt;&lt;ffffffff801722d7&gt;&#123;vfs_write&#43;199&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff80172413&gt;&#123;sys_write&#43;83&#125;<br>&gt;&lt;ffffffff801105d6&gt;&#123;system_call&#43;126&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&nbsp;&lt;ffffffff80172413&gt;&#123;sys_write&#43;83&#125;<br>&gt;&lt;ffffffff801105d6&gt;&#123;system_call&#43;126&#125;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;<br>&gt;Oct
26 21:11:08 ost1
kernel:&#160;&#160;&#160;&#160;&#160;&#160;<br>&gt;Oct
26 21:11:08 ost1 kernel:<br>&gt;Oct 26 21:11:08 ost1
kernel:<br>&gt;Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2
31 c0 45 85 ff<br>&gt;0f 94 c0 85 c2 74 10 66<br>&gt;Oct 26
21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85
ff<br>&gt;0f 94 c0 85 c2 74 10 66<br>&gt;Oct 26 21:11:08
ost1 kernel:
RIP<br>&gt;&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;&nbsp;RSP
&lt;0000010074097db8&gt;<br>&gt;Oct 26 21:11:08 ost1 kernel:
RIP<br>&gt;&lt;ffffffff8013c66a&gt;&#123;do_proc_dointvec&#43;106&#125;&nbsp;RSP
&lt;0000010074097db8&gt;<br>&gt;Oct 26 21:11:08 ost1 kernel:
CR2: 0000000000000000<br>&gt;Oct 26 21:11:08 ost1 kernel: CR2:
0000000000000000<br>&gt;<br>&gt;<br>&gt;<br>&gt;Lustre-discuss
mailing
list<br>&gt;Lustre-discuss@lists.clusterfs.com<br>&gt;https://lists.clusterfs.com/mailman/listinfo/lustre-discuss<br><br><br><br>
</DIV>

  </body>
</html>

--=__PartC8EAE67A.0__=--

PAulN

2006-May-19 07:36 UTC

head link

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

The kopenibnal crashes when lconf tries to set a proc value.
I remember seeing a warning during compilation, I guess it wasn''t a
joke.
Has anyone else come across this? I''m running a older version of lustre
so
this may already be fixed..

is anyone even using the kopenibnal?
paul

during lconf:

Service: network NET_ost1_openib NET_ost1_openib_UUID
NETWORK: NET_ost1_openib NET_ost1_openib_UUID openib ost1 988
+ lustre/utils/lctl
  network openib
  mynid ost1
  quit
+ sysctl /proc/sys/openibnal/port 988
Killed
....

Oct 26 21:11:02 ost1 kernel: Lustre: Filtering OBD driver; 
info@clusterfs.com
Oct 26 21:11:07 ost1 kernel: Lustre: 
1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK: 
pid:1512 port:988 backlog:127
Oct 26 21:11:07 ost1 kernel: Lustre: 
1511:0:(openibnal.c:792:kibnal_start_ip_listener()) Listener started OK: 
pid:1512 port:988 backlog:127
Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer 
dereference at 0000000000000000 RIP: 
Oct 26 21:11:07 ost1 kernel: Unable to handle kernel NULL pointer 
dereference at 0000000000000000 RIP: 
Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: <ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0 
Oct 26 21:11:07 ost1 kernel: PML4 74025067 PGD 74024067 PMD 0 
Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP 
Oct 26 21:11:07 ost1 kernel: Oops: 0000 [1] SMP 
Oct 26 21:11:07 ost1 kernel: CPU 0 
Oct 26 21:11:07 ost1 kernel: CPU 0 
Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc 
obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal kptlrou
ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl 
mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
 ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
Oct 26 21:11:07 ost1 kernel: Modules linked in: mds lov osc mdc 
obdfilter fsfilt_ldiskfs ldiskfs ost ptlrpc obdclass lvfs kopenibnal kptlrou
ter portals libcfs aic79xx ib_useraccess ib_tavor mod_vapi mod_vipkl 
mod_thh mod_hh mod_mpga mod_vapi_common mosal ib_dm_client ib_sa_client
 ib_client_query ib_cm ib_poll ib_mad ib_core ib_services md
Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted 
2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
Oct 26 21:11:07 ost1 kernel: Pid: 1463, comm: python Not tainted 
2.6.9-qsnetp2.5.11.3qsnetlustre-1.4.2.1_pauln
Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>] 
<ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: RIP: 0010:[<ffffffff8013c66a>] 
<ffffffff8013c66a>{do_proc_dointvec+106}
Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
Oct 26 21:11:07 ost1 kernel: RSP: 0018:0000010074097db8  EFLAGS: 00010206
Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c 
RCX: ffffffffa01e0b2c
Oct 26 21:11:07 ost1 kernel: RAX: 00000000000003dc RBX: ffffffffa01e0b2c 
RCX: ffffffffa01e0b2c
Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004 
RDI: 0000000000000003
Oct 26 21:11:07 ost1 kernel: RDX: 000001007370d880 RSI: 0000000000000004 
RDI: 0000000000000003
Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8 
R09: 0000000000000000
Oct 26 21:11:07 ost1 kernel: RBP: 0000002a99c2d000 R08: 0000010074097ed8 
R09: 0000000000000000
Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246 
R12: 0000000000000001
Oct 26 21:11:07 ost1 kernel: R10: 0000000000000000 R11: 0000000000000246 
R12: 0000000000000001
Oct 26 21:11:07 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000 
R15: 0000000000000001
Oct 26 21:11:08 ost1 kernel: R13: 0000010074097ed8 R14: 0000000000000000 
R15: 0000000000000001
Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000) 
GS:ffffffff806057c0(0000) knlGS:0000000000000000
Oct 26 21:11:08 ost1 kernel: FS:  0000002a95f59ca0(0000) 
GS:ffffffff806057c0(0000) knlGS:0000000000000000
Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 
000000008005003b
Oct 26 21:11:08 ost1 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 
000000008005003b
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000 
CR4: 00000000000006e0
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000 CR3: 0000000000101000 
CR4: 00000000000006e0
Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo 
0000010074096000, task 000001007df3f070)
Oct 26 21:11:08 ost1 kernel: Process python (pid: 1463, threadinfo 
0000010074096000, task 000001007df3f070)
Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000 
0000002a99c2d000 000001007e0249c0 
Oct 26 21:11:08 ost1 kernel: Stack: 0000000100000200 0000000100000000 
0000002a99c2d000 000001007e0249c0 
Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001 
0000000000000000 ffffffff80162e30 
Oct 26 21:11:08 ost1 kernel:        00000100739a4058 0000000000000001 
0000000000000000 ffffffff80162e30 
Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28 
Oct 26 21:11:08 ost1 kernel:        000001007452d100 000001007e024a28 
Oct 26 21:11:08 ost1 kernel: Call 
Trace:<ffffffff80162e30>{handle_mm_fault+368} 
<ffffffff8017b5b5>{vfs_fstat+133} 
Oct 26 21:11:08 ost1 kernel: Call 
Trace:<ffffffff80162e30>{handle_mm_fault+368} 
<ffffffff8017b5b5>{vfs_fstat+133} 
Oct 26 21:11:08 ost1 kernel:        
<ffffffff802b865b>{rb_insert_color+107} 
<ffffffff8013c9da>{proc_dointvec+26} 
Oct 26 21:11:08 ost1 kernel:        
<ffffffff802b865b>{rb_insert_color+107} 
<ffffffff8013c9da>{proc_dointvec+26} 
Oct 26 21:11:08 ost1 kernel:        
<ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191} 
Oct 26 21:11:08 ost1 kernel:        
<ffffffffa01c3a9f>{:kopenibnal:kibnal_listener_procint+191} 
Oct 26 21:11:08 ost1 kernel:        <ffffffff8013c2a9>{do_rw_proc+153} 
<ffffffff801722d7>{vfs_write+199} 
Oct 26 21:11:08 ost1 kernel:        <ffffffff8013c2a9>{do_rw_proc+153} 
<ffffffff801722d7>{vfs_write+199} 
Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83} 
<ffffffff801105d6>{system_call+126} 
Oct 26 21:11:08 ost1 kernel:        <ffffffff80172413>{sys_write+83} 
<ffffffff801105d6>{system_call+126} 
Oct 26 21:11:08 ost1 kernel:        
Oct 26 21:11:08 ost1 kernel:        
Oct 26 21:11:08 ost1 kernel: 
Oct 26 21:11:08 ost1 kernel: 
Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff 
0f 94 c0 85 c2 74 10 66 
Oct 26 21:11:08 ost1 kernel: Code: 49 83 39 00 0f 95 c2 31 c0 45 85 ff 
0f 94 c0 85 c2 74 10 66 
Oct 26 21:11:08 ost1 kernel: RIP 
<ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
Oct 26 21:11:08 ost1 kernel: RIP 
<ffffffff8013c66a>{do_proc_dointvec+106} RSP <0000010074097db8>
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000
Oct 26 21:11:08 ost1 kernel: CR2: 0000000000000000

Lustre discuss - May 2006 - kopenibnal 1.4.1.2 do_proc_dointvec bug?

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?

[Lustre-discuss] kopenibnal 1.4.1.2 do_proc_dointvec bug?