Hello,
I've encountered recurring issue with samba crashes when creating initial
Time Machine backup on samba share from Mac. Whole scenario, details about
software and logs are below.
On Mac client: connected to smb share with "valid user" account; added
smb
share as Time Machine disk.
Time machine has been set for automatic backup, I've selected Back Up Now.
Connection dies around 20%-30% of initial backup creation, samba share is
still on Finder list and can't be unmounted with an icon from gui. There
are no other Time Machine disks in use.
Server:
Linux debian 4.9.0-6-amd64 #1 SMP Debian 4.9.82-1+deb9u3 (2018-03-02)
x86_64 GNU/Linux
smbd/nmbd Version 4.8.0
Client:
macOS High Sierra
Version 10.13.3 (17D47)
Server:
smb.conf:
[global]
workgroup = SAMBA
security = user
passdb backend = tdbsam
durable handles = yes
kernel oplocks = no
kernel share modes = no
posix locking = no
fruit:time machine = yes
invalid users = root
encrypt passwords = yes
[TimeMachineD]
path = /data
browseable = yes
fruit:time machine = yes
vfs objects = catia fruit streams_xattr
fruit:aapl = yes
valid users = tmachine
read only = No
inherit acls = yes
Expected TimeMachine snapshot: 130GB
Samba share size: 950GB
smbd.log:
[2018/03/21 11:15:13.589109, 0]
../source3/locking/share_mode_lock.c:439(share_mode_data_destructor)
store returned NT_STATUS_UNSUCCESSFUL
[2018/03/21 11:15:13.589216, 0] ../source3/lib/util.c:815(smb_panic_s3)
PANIC (pid 933): could not store share mode entry: NT_STATUS_UNSUCCESSFUL
[2018/03/21 11:15:13.590549, 0] ../source3/lib/util.c:926(log_stack_trace)
BACKTRACE: 43 stack frames:
#0 /usr/lib/libsmbconf.so.0(log_stack_trace+0x1f) [0x7fc2eab63f65]
#1 /usr/lib/libsmbconf.so.0(smb_panic_s3+0x6d) [0x7fc2eab63dc2]
#2 /usr/lib/libsamba-util.so.0(smb_panic+0x28) [0x7fc2ecfd6849]
#3 /usr/lib/samba/libsmbd-base-samba4.so(+0x26ad44) [0x7fc2ecc31d44]
#4 /usr/lib/samba/libtalloc.so.2(+0x3414) [0x7fc2ec3b7414]
#5 /usr/lib/samba/libtalloc.so.2(+0x462e) [0x7fc2ec3b862e]
#6 /usr/lib/samba/libtalloc.so.2(+0x35cf) [0x7fc2ec3b75cf]
#7 /usr/lib/samba/libtalloc.so.2(+0x462e) [0x7fc2ec3b862e]
#8 /usr/lib/samba/libtalloc.so.2(+0x35cf) [0x7fc2ec3b75cf]
#9 /usr/lib/samba/libtalloc.so.2(+0x3790) [0x7fc2ec3b7790]
#10 /usr/lib/samba/libtalloc.so.2(_talloc_free+0x105) [0x7fc2ec3b8a58]
#11 /usr/lib/samba/libsmbd-base-samba4.so(+0x1c3451) [0x7fc2ecb8a451]
#12 /usr/lib/samba/libsmbd-base-samba4.so(+0x1c67d3) [0x7fc2ecb8d7d3]
#13 /usr/lib/samba/libsmbd-base-samba4.so(create_file_default+0x2ba)
[0x7fc2ecb8e354]
#14 /usr/lib/samba/libsmbd-base-samba4.so(+0xf1109) [0x7fc2ecab8109]
#15 /usr/lib/samba/libsmbd-base-samba4.so(smb_vfs_call_create_file+0xa9)
[0x7fc2ecb9a052]
#16 /usr/lib/samba/vfs/fruit.so(+0x1585f) [0x7fc2d8f0085f]
#17 /usr/lib/samba/libsmbd-base-samba4.so(smb_vfs_call_create_file+0xa9)
[0x7fc2ecb9a052]
#18 /usr/lib/samba/libsmbd-base-samba4.so(+0x216c7b) [0x7fc2ecbddc7b]
#19
/usr/lib/samba/libsmbd-base-samba4.so(smbd_smb2_request_process_create+0x770)
[0x7fc2ecbdbacb]
#20
/usr/lib/samba/libsmbd-base-samba4.so(smbd_smb2_request_dispatch+0x1184)
[0x7fc2ecbcf8d0]
#21 /usr/lib/samba/libsmbd-base-samba4.so(+0x20c8c6) [0x7fc2ecbd38c6]
#22 /usr/lib/samba/libsmbd-base-samba4.so(+0x20c9cc) [0x7fc2ecbd39cc]
#23 /usr/lib/samba/libtevent.so.0(+0xe581) [0x7fc2ebfac581]
#24 /usr/lib/samba/libtevent.so.0(+0xebb9) [0x7fc2ebfacbb9]
#25 /usr/lib/samba/libtevent.so.0(+0xb8b5) [0x7fc2ebfa98b5]
#26 /usr/lib/samba/libtevent.so.0(_tevent_loop_once+0x10f)
[0x7fc2ebfa3191]
#27 /usr/lib/samba/libtevent.so.0(tevent_common_loop_wait+0x25)
[0x7fc2ebfa34a8]
#28 /usr/lib/samba/libtevent.so.0(+0xb957) [0x7fc2ebfa9957]
#29 /usr/lib/samba/libtevent.so.0(_tevent_loop_wait+0x2b)
[0x7fc2ebfa354b]
#30 /usr/lib/samba/libsmbd-base-samba4.so(smbd_process+0xb34)
[0x7fc2ecbb7a2f]
#31 /usr/sbin/smbd(+0xbdf9) [0x5630c47dbdf9]
#32 /usr/lib/samba/libtevent.so.0(+0xe581) [0x7fc2ebfac581]
#33 /usr/lib/samba/libtevent.so.0(+0xebb9) [0x7fc2ebfacbb9]
#34 /usr/lib/samba/libtevent.so.0(+0xb8b5) [0x7fc2ebfa98b5]
#35 /usr/lib/samba/libtevent.so.0(_tevent_loop_once+0x10f)
[0x7fc2ebfa3191]
#36 /usr/lib/samba/libtevent.so.0(tevent_common_loop_wait+0x25)
[0x7fc2ebfa34a8]
#37 /usr/lib/samba/libtevent.so.0(+0xb957) [0x7fc2ebfa9957]
#38 /usr/lib/samba/libtevent.so.0(_tevent_loop_wait+0x2b)
[0x7fc2ebfa354b]
#39 /usr/sbin/smbd(+0xcad7) [0x5630c47dcad7]
#40 /usr/sbin/smbd(main+0x189e) [0x5630c47dec64]
#41 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)
[0x7fc2e92012e1]
#42 /usr/sbin/smbd(_start+0x2a) [0x5630c47d5e0a]
[2018/03/21 11:15:13.591273, 0] ../source3/lib/dumpcore.c:315(dump_core)
dumping core in /var/log/samba/cores/smbd
Client:
system.log
Mar 21 11:15:13 mac KernelEventAgent[128]: tid 54485244 received event(s)
VQ_DEAD (32)
Mar 21 11:15:13 mac KernelEventAgent[128]: tid 54485244 type 'smbfs',
mounted on '/Volumes/TimeMachineD-1', from '//
tmachine at 192.168.233.10/TimeMachineD', dead
Mar 21 11:15:13 mac KernelEventAgent[128]: tid 54485244 force unmount //
tmachine at 192.168.233.10/TimeMachineD from /Volumes/TimeMachineD-1
Mar 21 11:15:13 mac KernelEventAgent[128]: tid 54485244 found 1
filesystem(s) with problem(s)
Mar 21 11:15:14 mac kcm[7349]: DEPRECATED USE in libdispatch client:
Setting timer interval to 0 requests a 1ns timer, did you mean FOREVER (a
one-shot timer)?
Mar 21 11:15:15 mac KernelEventAgent[128]: tid 54485244 received event(s)
VQ_LOWDISK, VQ_VERYLOWDISK, VQ_NEARLOWDISK (8708)
Mar 21 11:15:15 mac KernelEventAgent[128]: tid 54485244 type 'hfs',
mounted
on '/Volumes/Time Machine Backups', from '/dev/disk2s2', low
disk, very low
disk
Mar 21 11:15:16 mac com.apple.xpc.launchd[1]
(com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for
integer: _DirtyJetsamMemoryLimit
Mar 21 11:15:16 mac CacheDeleteExtension[7354]: objc[7354]: Class
AMSupportURLConnectionDelegate is implemented in both
/System/Library/PrivateFrameworks/EmbeddedOSInstall.framework/Versions/A/EmbeddedOSInstall
(0x7fff9a79d748) and
/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice
(0x1060c50d0). One of the two will be used. Which one is undefined.
Mar 21 11:15:16 mac com.apple.xpc.launchd[1]
(com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for
integer: _DirtyJetsamMemoryLimit
Mar 21 11:15:16 mac com.apple.xpc.launchd[1] (com.apple.quicklook[7356]):
Endpoint has been activated through legacy launch(3) APIs. Please switch to
XPC or bootstrap_check_in(): com.apple.quicklook
