Ian Campbell
2013-Jun-11 16:44 UTC
[BUG] Bad page map in process after migration (Debian #711249)
A Debian user has reported this with the 3.2 kernel, it sounds vaguely
familiar, but neither I nor google can quite put my finger on it. Does
it ring any bells?
[1295549.783990] BUG: Bad page map in process java pte:00000166
pmd:3bacb067
[1295549.784005] page:ffffea0000000000 count:-1 mapcount:-128 mapping:
(null) index:0x0
[1295549.784036] page flags: 0x14(referenced|dirty)
[1295549.784044] addr:00007f879a6a2000 vm_flags:00100077
anon_vma:ffff88003cb472a0 mapping: (null) index:7f879a6a2
[1295549.784052] Pid: 13198, comm: java Not tainted 3.2.0-4-amd64 #1
Debian 3.2.41-2+deb7u2
[1295549.784058] Call Trace:
[1295549.784070] [<ffffffff810ce1f5>] ? print_bad_pte+0x1a5/0x1bd
[1295549.784075] [<ffffffff810cde55>] ? pte_pfn+0x5/0xe
[1295549.784083] [<ffffffff810cfe5c>] ? unmap_vmas+0x4d5/0x6ca
[1295549.784095] [<ffffffff810d00e1>] ? zap_page_range+0x90/0xb8
[1295549.784108] [<ffffffff810d5ce0>] ? mmap_region+0x353/0x44a
[1295549.784122] [<ffffffff81036428>] ? should_resched+0x5/0x23
[1295549.784133] [<ffffffff810cdba2>] ? sys_madvise+0x3d2/0x5fc
[1295549.784147] [<ffffffff81053e6c>] ?
recalc_sigpending+0x23/0x3c
[1295549.784156] [<ffffffff81054518>] ?
__set_task_blocked+0x5e/0x65
[1295549.784168] [<ffffffff81052e40>] ? spin_unlock_irq+0xa/0xb
[1295549.784178] [<ffffffff8105601c>] ? sigprocmask+0x5c/0x63
[1295549.784191] [<ffffffff813529d2>] ?
system_call_fastpath+0x16/0x1b
[1295549.784201] Disabling lock debugging due to kernel taint
There''s a bit more info and a full dmesg in
http://bugs.debian.org/711249
Cheers,
Ian.
konrad wilk
2013-Jun-11 17:01 UTC
Re: [BUG] Bad page map in process after migration (Debian #711249)
On 6/11/2013 12:44 PM, Ian Campbell wrote:> A Debian user has reported this with the 3.2 kernel, it sounds vaguely > familiar, but neither I nor google can quite put my finger on it. Does > it ring any bells? > > [1295549.783990] BUG: Bad page map in process java pte:00000166 pmd:3bacb067 > [1295549.784005] page:ffffea0000000000 count:-1 mapcount:-128 mapping: (null) index:0x0 > [1295549.784036] page flags: 0x14(referenced|dirty) > [1295549.784044] addr:00007f879a6a2000 vm_flags:00100077 anon_vma:ffff88003cb472a0 mapping: (null) index:7f879a6a2 > [1295549.784052] Pid: 13198, comm: java Not tainted 3.2.0-4-amd64 #1 Debian 3.2.41-2+deb7u2 > [1295549.784058] Call Trace: > [1295549.784070] [<ffffffff810ce1f5>] ? print_bad_pte+0x1a5/0x1bd > [1295549.784075] [<ffffffff810cde55>] ? pte_pfn+0x5/0xe > [1295549.784083] [<ffffffff810cfe5c>] ? unmap_vmas+0x4d5/0x6ca > [1295549.784095] [<ffffffff810d00e1>] ? zap_page_range+0x90/0xb8 > [1295549.784108] [<ffffffff810d5ce0>] ? mmap_region+0x353/0x44a > [1295549.784122] [<ffffffff81036428>] ? should_resched+0x5/0x23 > [1295549.784133] [<ffffffff810cdba2>] ? sys_madvise+0x3d2/0x5fc > [1295549.784147] [<ffffffff81053e6c>] ? recalc_sigpending+0x23/0x3c > [1295549.784156] [<ffffffff81054518>] ? __set_task_blocked+0x5e/0x65 > [1295549.784168] [<ffffffff81052e40>] ? spin_unlock_irq+0xa/0xb > [1295549.784178] [<ffffffff8105601c>] ? sigprocmask+0x5c/0x63 > [1295549.784191] [<ffffffff813529d2>] ? system_call_fastpath+0x16/0x1b > [1295549.784201] Disabling lock debugging due to kernel taint > > There''s a bit more info and a full dmesg in > http://bugs.debian.org/711249Thank you. Boris, Did you fix a similar issue in v3.9? There was the cgroup one which I thought had a similar back-track?
Boris Ostrovsky
2013-Jun-11 17:22 UTC
Re: [BUG] Bad page map in process after migration (Debian #711249)
On 06/11/2013 01:01 PM, konrad wilk wrote:> > On 6/11/2013 12:44 PM, Ian Campbell wrote: >> A Debian user has reported this with the 3.2 kernel, it sounds vaguely >> familiar, but neither I nor google can quite put my finger on it. Does >> it ring any bells? >> >> [1295549.783990] BUG: Bad page map in process java >> pte:00000166 pmd:3bacb067 >> [1295549.784005] page:ffffea0000000000 count:-1 >> mapcount:-128 mapping: (null) index:0x0 >> [1295549.784036] page flags: 0x14(referenced|dirty) >> [1295549.784044] addr:00007f879a6a2000 vm_flags:00100077 >> anon_vma:ffff88003cb472a0 mapping: (null) index:7f879a6a2 >> [1295549.784052] Pid: 13198, comm: java Not tainted >> 3.2.0-4-amd64 #1 Debian 3.2.41-2+deb7u2 >> [1295549.784058] Call Trace: >> [1295549.784070] [<ffffffff810ce1f5>] ? >> print_bad_pte+0x1a5/0x1bd >> [1295549.784075] [<ffffffff810cde55>] ? pte_pfn+0x5/0xe >> [1295549.784083] [<ffffffff810cfe5c>] ? unmap_vmas+0x4d5/0x6ca >> [1295549.784095] [<ffffffff810d00e1>] ? >> zap_page_range+0x90/0xb8 >> [1295549.784108] [<ffffffff810d5ce0>] ? >> mmap_region+0x353/0x44a >> [1295549.784122] [<ffffffff81036428>] ? >> should_resched+0x5/0x23 >> [1295549.784133] [<ffffffff810cdba2>] ? >> sys_madvise+0x3d2/0x5fc >> [1295549.784147] [<ffffffff81053e6c>] ? >> recalc_sigpending+0x23/0x3c >> [1295549.784156] [<ffffffff81054518>] ? >> __set_task_blocked+0x5e/0x65 >> [1295549.784168] [<ffffffff81052e40>] ? >> spin_unlock_irq+0xa/0xb >> [1295549.784178] [<ffffffff8105601c>] ? sigprocmask+0x5c/0x63 >> [1295549.784191] [<ffffffff813529d2>] ? >> system_call_fastpath+0x16/0x1b >> [1295549.784201] Disabling lock debugging due to kernel taint >> >> There''s a bit more info and a full dmesg in >> http://bugs.debian.org/711249 > > Thank you. > Boris, > Did you fix a similar issue in v3.9? There was the cgroup one which I > thought had a similar back-track?The only thing I can think of is the issue related to lazy MMU flush that involved zap_page_range(). The signature was slightly different though. It''s commit 1160c2779b826c6f5c08e5cc542de58fd1f667d5. -boris