While testing this patchset without Jan's freeze work, I hit this assert. This one rings bells for me, but I can't find where it's been reported. -Ben [56571.411824] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 [56571.412798] IP: [<ffffffffa00bf477>] xfs_log_space_wake+0x17/0x140 [xfs] [56571.412798] PGD 0 [56571.412798] Oops: 0000 [#1] SMP [56571.412798] CPU 3 [56571.412798] Modules linked in: xfs(O) nfsd exportfs e1000e [56571.412798] [56571.412798] Pid: 14544, comm: kworker/3:25 Tainted: G O 3.4.0-rc2+ #3 SGI.COM AltixXE310/X7DGT-INF [56571.412798] RIP: 0010:[<ffffffffa00bf477>] [<ffffffffa00bf477>] xfs_log_space_wake+0x17/0x140 [xfs] [56571.412798] RSP: 0018:ffff8801204a7ce0 EFLAGS: 00010282 [56571.412798] RAX: ffff88010fdd3de8 RBX: ffff88010a4971c0 RCX: 0000000000000000 [56571.412798] RDX: ffff88010fdd3de8 RSI: 0000000000000282 RDI: ffff88010fdd3580 [56571.412798] RBP: ffff8801204a7d00 R08: ffff88010fdd3dd0 R09: 0000000000000000 [56571.412798] R10: 0000000000000400 R11: 0000000000000001 R12: 0000000000000000 [56571.412798] R13: 0000000000000001 R14: ffff8801204a7d80 R15: ffff88010fdd3d80 [56571.412798] FS: 0000000000000000(0000) GS:ffff88012fd80000(0000) knlGS:0000000000000000 [56571.412798] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [56571.412798] CR2: 0000000000000028 CR3: 0000000001c0c000 CR4: 00000000000007e0 [56571.412798] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [56571.412798] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [56571.412798] Process kworker/3:25 (pid: 14544, threadinfo ffff8801204a6000, task ffff880101750750) [56571.412798] Stack: [56571.412798] ffff88010fdd3da8 0000000000000001 ffff88010a4971c0 ffff88010fdd3da8 [56571.412798] ffff8801204a7d60 ffffffffa00c64ef 0000000000000000 0000000100000008 [56571.412798] ffff88010a4971c0 0000000181063e35 ffff88010fdd3d90 ffff88010a4971c0 [56571.412798] Call Trace: [56571.412798] [<ffffffffa00c64ef>] xfs_trans_ail_delete_bulk+0x14f/0x1e0 [xfs] [56571.412798] [<ffffffffa00c31c7>] xfs_buf_iodone+0x67/0x90 [xfs] [56571.412798] [<ffffffff810663fc>] ? ttwu_do_activate+0x4c/0x60 [56571.412798] [<ffffffffa00c2d9c>] xfs_buf_do_callbacks+0x5c/0x70 [xfs] [56571.412798] [<ffffffffa00c2f49>] xfs_buf_iodone_callbacks+0x39/0x230 [xfs] [56571.412798] [<ffffffffa005a2d1>] xfs_buf_iodone_work+0x21/0x50 [xfs] [56571.412798] [<ffffffff81051498>] process_one_work+0x158/0x440 [56571.412798] [<ffffffffa005a2b0>] ? xfs_bioerror_relse+0x80/0x80 [xfs] [56571.412798] [<ffffffff8105428b>] worker_thread+0x17b/0x410 [56571.412798] [<ffffffff81054110>] ? manage_workers+0x200/0x200 [56571.412798] [<ffffffff81058bce>] kthread+0x9e/0xb0 [56571.412798] [<ffffffff816f8014>] kernel_thread_helper+0x4/0x10 [56571.412798] [<ffffffff81058b30>] ? kthread_freezable_should_stop+0x70/0x70 [56571.412798] [<ffffffff816f8010>] ? gs_change+0xb/0xb [56571.412798] Code: 5e 41 5f c9 c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 83 ec 20 48 89 5d f0 4c 89 65 f8 4c 8b a7 40 01 00 00 <41> 8b 54 24 28 f6 c2 08 0f 85 db 00 00 00 49 8d 84 24 88 01 00 [56571.412798] RIP [<ffffffffa00bf477>] xfs_log_space_wake+0x17/0x140 [xfs] [56571.412798] RSP <ffff8801204a7ce0> [56571.412798] CR2: 0000000000000028 [56572.245080] ---[ end trace 389bb5c2de2235a4 ]--- [56572.258912] BUG: unable to handle kernel paging request at fffffffffffffff8 [56572.270001] IP: [<ffffffff810586ab>] kthread_data+0xb/0x20 [56572.270001] PGD 1c0e067 PUD 1c0f067 PMD 0 [56572.270001] Oops: 0000 [#2] SMP [56572.270001] CPU 3 [56572.270001] Modules linked in: xfs(O) nfsd exportfs e1000e [56572.270001] [56572.270001] Pid: 14544, comm: kworker/3:25 Tainted: G D O 3.4.0-rc2+ #3 SGI.COM AltixXE310/X7DGT-INF [56572.270001] RIP: 0010:[<ffffffff810586ab>] [<ffffffff810586ab>] kthread_data+0xb/0x20 [56572.270001] RSP: 0018:ffff8801204a7838 EFLAGS: 00010096 [56572.270001] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00000698cbadbdda [56572.270001] RDX: 0000000000000003 RSI: 0000000000000003 RDI: ffff880101750750 [56572.270001] RBP: ffff8801204a7838 R08: ffff88012fd8d248 R09: 0000000000000000 [56572.270001] R10: 0000000000000400 R11: 0000000000000001 R12: ffff880101750ad8 [56572.270001] R13: ffff88012fd920c0 R14: 0000000000000003 R15: ffff8801017509e0 [56572.270001] FS: 0000000000000000(0000) GS:ffff88012fd80000(0000) knlGS:0000000000000000 [56572.270001] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [56572.270001] CR2: fffffffffffffff8 CR3: 0000000001c0c000 CR4: 00000000000007e0 [56572.270001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [56572.270001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [56572.270001] Process kworker/3:25 (pid: 14544, threadinfo ffff8801204a6000, task ffff880101750750) [56572.270001] Stack: [56572.270001] ffff8801204a7858 ffffffff81052680 ffff8801204a7858 ffff880101750750 [56572.270001] ffff8801204a7998 ffffffff816ee4df ffff8801204a6010 00000000000120c0 [56572.270001] 00000000000120c0 ffff880101750750 00000000000120c0 ffff8801204a7fd8 [56572.270001] Call Trace: [56572.270001] [<ffffffff81052680>] wq_worker_sleeping+0x10/0xa0 [56572.270001] [<ffffffff816ee4df>] __schedule+0x64f/0x810 [56572.270001] [<ffffffff81051c49>] ? __queue_work+0x219/0x400 [56572.270001] [<ffffffff8113ab77>] ? d_hash_and_lookup+0x37/0x70 [56572.270001] [<ffffffff81051e76>] ? queue_work_on+0x16/0x20 [56572.270001] [<ffffffff81051eba>] ? queue_work+0x1a/0x20 [56572.270001] [<ffffffff81259392>] ? put_io_context+0x62/0x90 [56572.270001] [<ffffffff816ee994>] schedule+0x24/0x70 [56572.270001] [<ffffffff8103c926>] do_exit+0x676/0xa00 [56572.270001] [<ffffffff816f04cc>] oops_end+0xdc/0xe0 [56572.270001] [<ffffffff8102c7a8>] no_context+0x118/0x2e0 [56572.270001] [<ffffffff8102ca9d>] __bad_area_nosemaphore+0x12d/0x200 [56572.270001] [<ffffffff8102cb7e>] bad_area_nosemaphore+0xe/0x10 [56572.270001] [<ffffffff816f2b8e>] do_page_fault+0x34e/0x480 [56572.270001] [<ffffffff816ef9af>] page_fault+0x1f/0x30 [56572.270001] [<ffffffffa00bf477>] ? xfs_log_space_wake+0x17/0x140 [xfs] [56572.270001] [<ffffffffa00c64ef>] xfs_trans_ail_delete_bulk+0x14f/0x1e0 [xfs] [56572.270001] [<ffffffffa00c31c7>] xfs_buf_iodone+0x67/0x90 [xfs] [56572.270001] [<ffffffff810663fc>] ? ttwu_do_activate+0x4c/0x60 [56572.270001] [<ffffffffa00c2d9c>] xfs_buf_do_callbacks+0x5c/0x70 [xfs] [56572.270001] [<ffffffffa00c2f49>] xfs_buf_iodone_callbacks+0x39/0x230 [xfs] [56572.270001] [<ffffffffa005a2d1>] xfs_buf_iodone_work+0x21/0x50 [xfs] [56572.270001] [<ffffffff81051498>] process_one_work+0x158/0x440 [56572.270001] [<ffffffffa005a2b0>] ? xfs_bioerror_relse+0x80/0x80 [xfs] [56572.270001] [<ffffffff8105428b>] worker_thread+0x17b/0x410 [56572.270001] [<ffffffff81054110>] ? manage_workers+0x200/0x200 [56572.270001] [<ffffffff81058bce>] kthread+0x9e/0xb0 [56572.270001] [<ffffffff816f8014>] kernel_thread_helper+0x4/0x10 [56572.270001] [<ffffffff81058b30>] ? kthread_freezable_should_stop+0x70/0x70 [56572.270001] [<ffffffff816f8010>] ? gs_change+0xb/0xb [56572.270001] Code: 55 65 48 8b 04 25 40 b7 00 00 48 8b 80 30 03 00 00 48 89 e5 8b 40 f0 c9 c3 0f 1f 80 00 00 00 00 48 8b 87 30 03 00 00 55 48 89 e5 <48> 8b 40 f8 c9 c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 [56572.270001] RIP [<ffffffff810586ab>] kthread_data+0xb/0x20 [56572.270001] RSP <ffff8801204a7838> [56572.270001] CR2: fffffffffffffff8 [56572.270001] ---[ end trace 389bb5c2de2235a5 ]--- [56572.270001] Fixing recursive fault but reboot is needed! _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
