Messages in this thread | | | Date | Sun, 11 May 2008 15:26:37 +0400 | From | "Alexander Beregalov" <> | Subject | Re: 2.6.26-rc1: WARNING: at kernel/sched.c:4388 |
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2008/5/11 Adrian Bunk <bunk@kernel.org>: > On Sun, May 11, 2008 at 01:32:22AM +0400, Alexander Beregalov wrote: >> 2008/5/11 Adrian Bunk <bunk@kernel.org>: >> > On Sat, May 10, 2008 at 01:45:55PM +0400, Alexander Beregalov wrote: >> >> Hi >> >> >> >> Is it a scheduler or preempt issue? >> >> >> >> WARNING: at kernel/sched.c:4388 sub_preempt_count+0x57/0x60() >> >> Modules linked in: >> >> Pid: 9698, comm: rtorrent Not tainted 2.6.26-rc1-00279-g28a4acb #13 >> >> [<c011a00a>] warn_on_slowpath+0x41/0x6c >> >> [<c02ec49f>] ? oprofile_add_sample+0x29/0x32 >> >> [<c02edc91>] ? athlon_check_ctrs+0x32/0x56 >> >> [<c02ed6fb>] ? profile_exceptions_notify+0x23/0x34 >> > >> > My first guess would be an oprofile problem, but I could be completely >> > wrong on this one. >> > >> > Is it reproducible? >> It happened only at once. >> I dont know what did cause it, so I will wait for the second occurrence. >>... > > You already have enough material for sending a bug report, I asked my > questions only for figuring out whether it's a regression and whether > bisecting it might make sense. > > Send the email you sent here together with the output of dmesg and your > .config to all email addresses you find under the SCHEDULER and OPROFILE > entries in the MAINTAINERS file. Ok, thanks.
WARNING: at kernel/sched.c:4388 sub_preempt_count+0x57/0x60() Modules linked in: Pid: 9698, comm: rtorrent Not tainted 2.6.26-rc1-00279-g28a4acb #13 [<c011a00a>] warn_on_slowpath+0x41/0x6c [<c02ec49f>] ? oprofile_add_sample+0x29/0x32 [<c02edc91>] ? athlon_check_ctrs+0x32/0x56 [<c02ed6fb>] ? profile_exceptions_notify+0x23/0x34 [<c035a1b9>] ? notifier_call_chain+0x2b/0x4a [<c0140dc6>] ? __rcu_read_unlock+0x51/0x5f [<c035a204>] ? __atomic_notifier_call_chain+0x2c/0x36 [<c035a21a>] ? atomic_notifier_call_chain+0xc/0xe [<c012cd1d>] ? notify_die+0x2d/0x2f BUG: unable to handle kernel paging request at 8b0d7400 IP: [<c0103aad>] dump_trace+0x9a/0xd6 *pde = 00000000 Oops: 0000 [#1] PREEMPT DEBUG_PAGEALLOC Modules linked in:
Pid: 9698, comm: rtorrent Not tainted (2.6.26-rc1-00279-g28a4acb #13) EIP: 0060:[<c0103aad>] EFLAGS: 00210093 CPU: 0 EIP is at dump_trace+0x9a/0xd6 EAX: 8b0d7ffc EBX: 8b0d7400 ECX: 0000160c EDX: 00000000 ESI: 56d78957 EDI: f54d6024 EBP: f54d5ec0 ESP: f54d5ea4 DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process rtorrent (pid: 9698, ti=f54d5000 task=f6270000 task.ti=f54d6000) Stack: 8b0d7ffc c01039d4 8b0d7000 00001000 c0436c04 f54d5f1c c03e844d f54d5ed8 c0103afe f54d5f1c c0361978 c0436c04 00000003 f54d5ee8 c0104165 f54d5f1c c0436c04 f54d5f1c c010451f f54d5f1c c03e2704 000025e2 f62702f0 c04b960c Call Trace: [<c01039d4>] ? print_trace_address+0x0/0x3f [<c0103afe>] ? show_trace_log_lvl+0x15/0x28 [<c0104165>] ? show_trace+0x10/0x14 [<c010451f>] ? dump_stack+0x59/0x63 [<c011a00a>] ? warn_on_slowpath+0x41/0x6c [<c02ec49f>] ? oprofile_add_sample+0x29/0x32 [<c02edc91>] ? athlon_check_ctrs+0x32/0x56 [<c02ed6fb>] ? profile_exceptions_notify+0x23/0x34 [<c035a1b9>] ? notifier_call_chain+0x2b/0x4a [<c0140dc6>] ? __rcu_read_unlock+0x51/0x5f [<c035a204>] ? __atomic_notifier_call_chain+0x2c/0x36 [<c035a21a>] ? atomic_notifier_call_chain+0xc/0xe [<c012cd1d>] ? notify_die+0x2d/0x2f BUG: unable to handle kernel paging request at 8b0d7400 IP: [<c0103aad>] dump_trace+0x9a/0xd6 *pde = 00000000 Oops: 0000 [#2] PREEMPT DEBUG_PAGEALLOC Modules linked in:
Pid: 9698, comm: rtorrent Not tainted (2.6.26-rc1-00279-g28a4acb #13) EIP: 0060:[<c0103aad>] EFLAGS: 00210093 CPU: 0 EIP is at dump_trace+0x9a/0xd6 EAX: 8b0d7ffc EBX: 8b0d7400 ECX: 0000160c EDX: 00000000 ESI: 56d78957 EDI: f54d5d90 EBP: f54d5d90 ESP: f54d5d74 DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process rtorrent (pid: 9698, ti=f54d5000 task=f6270000 task.ti=f54d6000) Stack: 8b0d7ffc c01039d4 8b0d7000 f54d5ea4 c03e230f 00000018 00000000 f54d5da8 c0103afe 00000000 c0361978 c03e230f f54d5f07 f54d5dd4 c0103b9e 00000000 c03e230f c03e238e c03e230f f54d5e6c f54d5ea4 00000000 f54d5e6c 0000002b Call Trace: [<c01039d4>] ? print_trace_address+0x0/0x3f [<c0103afe>] ? show_trace_log_lvl+0x15/0x28 [<c0103b9e>] ? show_stack_log_lvl+0x8d/0x98 [<c0103c34>] ? show_registers+0x8b/0x1bc [<c0358833>] ? __die+0x61/0xc6 [<c0358849>] ? __die+0x77/0xc6 [<c0103dec>] ? die+0x87/0x106 [<c035a011>] ? do_page_fault+0x4e3/0x59d [<c0359b2e>] ? do_page_fault+0x0/0x59d [<c0358632>] ? error_code+0x6a/0x70 [<c0103aad>] ? dump_trace+0x9a/0xd6 [<c01039d4>] ? print_trace_address+0x0/0x3f [<c0103afe>] ? show_trace_log_lvl+0x15/0x28 [<c0104165>] ? show_trace+0x10/0x14 [<c010451f>] ? dump_stack+0x59/0x63 [<c011a00a>] ? warn_on_slowpath+0x41/0x6c [<c02ec49f>] ? oprofile_add_sample+0x29/0x32 [<c02edc91>] ? athlon_check_ctrs+0x32/0x56 [<c02ed6fb>] ? profile_exceptions_notify+0x23/0x34 [<c035a1b9>] ? notifier_call_chain+0x2b/0x4a [<c0140dc6>] ? __rcu_read_unlock+0x51/0x5f [<c035a204>] ? __atomic_notifier_call_chain+0x2c/0x36 [<c035a21a>] ? atomic_notifier_call_chain+0xc/0xe [<c012cd1d>] ? notify_die+0x2d/0x2f BUG: unable to handle kernel paging request at 8b0d7400 IP: [<c0103aad>] dump_trace+0x9a/0xd6 *pde = 00000000 Recursive die() failure, output suppressed Kernel panic - not syncing: Fatal exception in interrupt [unhandled content-type:application/octet-stream][unhandled content-type:application/octet-stream] | |