2009/7/7, Christian Kujau <lists@xxxxxxxxxxxxxxx>: > On Sun, 5 Jul 2009, "Jérôme M. Berger" wrote: > > > Jun 15 23:18:02 rover kernel: BUG: unable to handle kernel NULL pointer > > > dereference at 0000000000000018 > > > Jun 15 23:18:02 rover kernel: IP: [<ffffffff80227a85>] > > > __ticket_spin_lock+0x5/0x20 > > Hm, this looks like http://bugzilla.kernel.org/show_bug.cgi?id=13556 to > me, maybe it's the same issue? > > If so: @Michael, do you still experience these oopses or has the bug > somehow magically resolved for you? Bug is rock stable :(. Below the latest oops from kernel 2.6.30.1. Configuration is same as in my report. BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffff805c456a>] _spin_lock_irq+0xa/0x20 PGD 7a939067 PUD 7a8a1067 PMD 0 Oops: 0002 [#1] SMP last sysfs file: /sys/kernel/uevent_seqnum CPU 0 Pid: 1551, comm: reiserfs/0 Not tainted 2.6.30.1-netconsole #1 EP45T-DS3 RIP: 0010:[<ffffffff805c456a>] [<ffffffff805c456a>] _spin_lock_irq+0xa/0x20 RSP: 0018:ffff88007e157d30 EFLAGS: 00010082 RAX: 0000000000000100 RBX: ffffe200016e00f8 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff88007e157d30 R08: ffff88007f986c00 R09: 000000000afd1261 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000018 R15: ffff88007f986c00 FS: 0000000000000000(0000) GS:ffff880001010000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000018 CR3: 000000007f9f6000 CR4: 00000000000406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process reiserfs/0 (pid: 1551, threadinfo ffff88007e156000, task ffff88007ed49bd0) Stack: ffff88007e157d60 ffffffff802c19a0 ffff880067922930 0000000000000000 ffff88007d318180 0000000000000000 ffff88007e157d80 ffffffff802c1a96 0000000000000000 ffffc200098d94c0 ffff88007e157e00 ffffffff80316a03 Call Trace: [<ffffffff802c19a0>] __set_page_dirty+0x30/0xd0 [<ffffffff802c1a96>] mark_buffer_dirty+0x56/0xa0 [<ffffffff80316a03>] flush_commit_list+0x713/0x720 [<ffffffff805c2231>] ? thread_return+0x3e/0x66d [<ffffffff803165ee>] flush_commit_list+0x2fe/0x720 [<ffffffff80316b24>] flush_async_commits+0x54/0x70 [<ffffffff80316ad0>] ? flush_async_commits+0x0/0x70 [<ffffffff8024b6cc>] worker_thread+0x11c/0x1f0 [<ffffffff8024fa20>] ? autoremove_wake_function+0x0/0x40 [<ffffffff8024b5b0>] ? worker_thread+0x0/0x1f0 [<ffffffff8024b5b0>] ? worker_thread+0x0/0x1f0 [<ffffffff8024f616>] kthread+0x56/0x90 [<ffffffff8020c2ba>] child_rip+0xa/0x20 [<ffffffff8024f5c0>] ? kthread+0x0/0x90 [<ffffffff8020c2b0>] ? child_rip+0x0/0x20 Code: 90 55 48 89 e5 9c 58 fa ba 00 01 00 00 f0 66 0f c1 17 38 f2 74 06 f3 90 8a 17 eb f6 c9 c3 66 66 90 55 48 89 e5 fa b8 00 01 00 00 <f0> 66 0f c1 07 38 e0 74 06 f3 90 8a 07 eb f6 c9 c3 66 66 90 66 RIP [<ffffffff805c456a>] _spin_lock_irq+0xa/0x20 RSP <ffff88007e157d30> CR2: 0000000000000018 ---[ end trace 0c4afebe89587152 ]--- ------------[ cut here ]------------ WARNING: at kernel/exit.c:896 do_exit+0x601/0x730() Hardware name: EP45T-DS3 Pid: 1551, comm: reiserfs/0 Tainted: G D 2.6.30.1-netconsole #1 Call Trace: [<ffffffff8023d811>] ? do_exit+0x601/0x730 [<ffffffff80239b43>] warn_slowpath_common+0x73/0xc0 [<ffffffff80239b9f>] warn_slowpath_null+0xf/0x20 [<ffffffff8023d811>] do_exit+0x601/0x730 [<ffffffff8020f5db>] oops_end+0x9b/0xa0 [<ffffffff80226c48>] no_context+0xe8/0x260 [<ffffffff8023017a>] ? dequeue_task_fair+0x4a/0x1d0 [<ffffffff80226f05>] __bad_area_nosemaphore+0x145/0x1e0 [<ffffffff805c2261>] ? thread_return+0x6e/0x66d [<ffffffff803c108e>] ? cfq_insert_request+0x37e/0x3a0 [<ffffffff80226fae>] bad_area_nosemaphore+0xe/0x10 [<ffffffff80227337>] do_page_fault+0x1c7/0x280 [<ffffffff805c4a7f>] page_fault+0x1f/0x30 [<ffffffff805c456a>] ? _spin_lock_irq+0xa/0x20 [<ffffffff802c19a0>] __set_page_dirty+0x30/0xd0 [<ffffffff802c1a96>] mark_buffer_dirty+0x56/0xa0 [<ffffffff80316a03>] flush_commit_list+0x713/0x720 [<ffffffff805c2231>] ? thread_return+0x3e/0x66d [<ffffffff803165ee>] flush_commit_list+0x2fe/0x720 [<ffffffff80316b24>] flush_async_commits+0x54/0x70 [<ffffffff80316ad0>] ? flush_async_commits+0x0/0x70 [<ffffffff8024b6cc>] worker_thread+0x11c/0x1f0 [<ffffffff8024fa20>] ? autoremove_wake_function+0x0/0x40 [<ffffffff8024b5b0>] ? worker_thread+0x0/0x1f0 [<ffffffff8024b5b0>] ? worker_thread+0x0/0x1f0 [<ffffffff8024f616>] kthread+0x56/0x90 [<ffffffff8020c2ba>] child_rip+0xa/0x20 [<ffffffff8024f5c0>] ? kthread+0x0/0x90 [<ffffffff8020c2b0>] ? child_rip+0x0/0x20 ---[ end trace 0c4afebe89587153 ]--- Michael Uleysky -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
