[Bugme-new] [Bug 16616] New: kmemcheck: Fatal error since 2.6.36-rc1

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Tue Aug 17 13:00:40 PDT 2010


https://bugzilla.kernel.org/show_bug.cgi?id=16616

           Summary: kmemcheck: Fatal error since 2.6.36-rc1
           Product: Memory Management
           Version: 2.5
    Kernel Version: 2.6.36-rc1
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: akpm at linux-foundation.org
        ReportedBy: casteyde.christian at free.fr
        Regression: Yes


Kernel: 2.6.36-rc1
Athlon 64X2 4200 in 64bits mode
Slackware64 13.1
1GB RAM

While booting 2.6.36-rc1 with kmemcheck and several kernel hacking options, I
get the following kmemcheck error:

Write protecting the kernel read-only data: 10240k
Freeing unused kernel memory: 392k freed
Freeing unused kernel memory: 1956k freed
udevd (1466): /proc/1466/oom_adj is deprecated, please use
/proc/1466/oom_score_adj instead.
C-Media PCI 0000:02:07.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
ERROR: kmemcheck: Fatal error

Pid: 1591, comm: modprobe Not tainted 2.6.36-rc1 #2 K8 Combo-Z/K8 Combo-Z
RIP: 0010:[<ffffffff81013ff1>]  [<ffffffff81013ff1>]
x86_pmu_handle_irq+0x81/0x180
RSP: 0018:ffff880002607d78  EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff88003f808400 RCX: 00000000ffffffff
RDX: ffff880002607ef8 RSI: 0000000000000400 RDI: ffff880002607f58
RBP: ffff880002607e18 R08: 0000000000000000 R09: 0000000000000030
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88000260b7c0 R14: ffff88000260b5c0 R15: 0000000000000040
FS:  00007f8d95a64700(0000) GS:ffff880002600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88003f8367b8 CR3: 000000003d0dc000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff8102b794>] kmemcheck_error_save_bug+0xb4/0xe0
 [<ffffffff8102c1b8>] kmemcheck_access+0xe8/0x4a0
 [<ffffffff8102c5e2>] kmemcheck_fault+0x72/0x80
 [<ffffffff81026b39>] do_page_fault+0x359/0x440
 [<ffffffff81596a1f>] page_fault+0x1f/0x30
 [<ffffffff81010bab>] perf_event_nmi_handler+0x4b/0x60
 [<ffffffff81065e40>] notifier_call_chain+0x50/0xa0
 [<ffffffff810663f1>] __atomic_notifier_call_chain+0x71/0xd0
 [<ffffffff81066461>] atomic_notifier_call_chain+0x11/0x20
 [<ffffffff8106649e>] notify_die+0x2e/0x30
 [<ffffffff81004343>] do_nmi+0x193/0x2b0
 [<ffffffff81596d0a>] nmi+0x1a/0x2c
 [<ffffffff8102bf47>] kmemcheck_read_strict+0x47/0xa0
 [<ffffffff8102bfe5>] kmemcheck_read+0x45/0x70
 [<ffffffff8102c15d>] kmemcheck_access+0x8d/0x4a0
 [<ffffffff8102c5e2>] kmemcheck_fault+0x72/0x80
 [<ffffffff81026b39>] do_page_fault+0x359/0x440
 [<ffffffff81596a1f>] page_fault+0x1f/0x30
 [<ffffffff810ea300>] mntput_no_expire+0x20/0xb0
 [<ffffffff810d047f>] fput+0x1af/0x290
 [<ffffffff810cce58>] filp_close+0x58/0x90
 [<ffffffff810ccf4c>] sys_close+0xbc/0x190
 [<ffffffff810023ab>] system_call_fastpath+0x16/0x1b
 [<ffffffffffffffff>] 0xffffffffffffffff
Intel ICH 0000:00:04.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
AC'97 1 does not respond - RESET
AC'97 1 access is not valid [0xffffffff], removing mixer.
Unable to initialize codec #1
...

Do not know what caused the nmi at start. The computer runs fine even after
that.

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