Le jeudi 17 mai 2007 à 18:59 +0200, Nicolas Mailhot a écrit : > Le jeudi 17 mai 2007 à 09:45 -0700, Randy Dunlap a écrit : > > > Can you boot with "kstack=32" so that we can see more of the stack? > > I can try. It's not triggering quickly though Seems I was completely wrong about the trigger, but anyway it happened again, this time on 2.6.22-rc2.mm1.cfs14 (and I had kept kstack=32) BUG: using smp_processor_id() in preemptible [00000001] code: bash/3857 caller is oops_begin+0xb/0x6f Call Trace: [<ffffffff8020ab4d>] show_trace+0x34/0x4f [<ffffffff8020ab7a>] dump_stack+0x12/0x17 [<ffffffff8030d92d>] debug_smp_processor_id+0xad/0xbc [<ffffffff8042388f>] oops_begin+0xb/0x6f [<ffffffff8042520b>] do_page_fault+0x66a/0x7c0 [<ffffffff804234bd>] error_exit+0x0/0x84 Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: [<0000000000000000>] PGD bdd2067 PUD c133067 PMD 0 Oops: 0010 [1] PREEMPT SMP CPU 1 Pid: 3857, comm: bash Not tainted 2.6.22-0.8.rc2.mm1.cfs14.fc8.nim #1 RIP: 0010:[<0000000000000000>] [<0000000000000000>] RSP: 0018:ffff81000cb03ee0 EFLAGS: 00010296 RAX: ffffffff8044dbc0 RBX: ffff81000c3aa8c0 RCX: 00007fff549dcae4 RDX: 0000000000005410 RSI: ffff81000c3aa8c0 RDI: ffff81000ba913d8 RBP: 00007fff549dcae4 R08: 0000000000000000 R09: 00000000ffffffff R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000005410 R13: 00000000000000ff R14: 00000000000000ff R15: 0000000000000000 FS: 00002b06560d8f40(0000) GS:ffff810004017180(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000000bc55000 CR4: 00000000000006e0 Process bash (pid: 3857, threadinfo ffff81000cb02000, task ffff81000adc59a0) Stack: ffffffff8028ada9 ffff81000c3aa8c0 00007fff549dcae4 00007fff549dcae4 ffffffff8028b016 0000000000005410 00000000000000ff ffff81000c3aa8c0 0000000000000000 00007fff549dcae4 0000000000005410 00000000000000ff ffffffff8028b088 0000000000000000 0000000080209571 00000000ffffffff 00007fff549dce87 0000000000000f11 00007fff549dcfb8 00007fff549dddb0 ffffffff802095dc 0000000000000246 0000000000000008 00000000ffffffff 0000000000000000 ffffffffffffffda ffffffffffffffff 00007fff549dcae4 0000000000005410 00000000000000ff 0000000000000010 0000003d340c9117 Call Trace: Inexact backtrace: [<ffffffff8028ada9>] do_ioctl+0x55/0x6b [<ffffffff8028b016>] vfs_ioctl+0x257/0x270 [<ffffffff8028b088>] sys_ioctl+0x59/0x79 [<ffffffff802095dc>] tracesys+0xdc/0xe1 INFO: lockdep is turned off. Code: Bad RIP value. RIP [<0000000000000000>] RSP <ffff81000cb03ee0> CR2: 0000000000000000 -- Nicolas Mailhot
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