On Tue, Dec 07, 2010 at 07:42:56AM -0800, blacknred wrote: > > Hi..... > > I get a kernel panic on my HP Proliant Server. > > here's trace: > > BUG: unable to handle kernel NULL pointer dereference at virtual address > 00000052 > printing eip: > *pde = 2c731001 > Oops: 0000 [#1] > SMP > > CPU: 2 > EIP: 0060:[<c0529da1>] Tainted: GF VLI ^^^^^^^^^^^ You've done a forced module load. No guarantee your kernel is in any sane shape if you've done that.... > EFLAGS: 00010272 (2.6.33.3-85.fc13.x86_64 #1) > EIP is at do_page_fault+0x245/0x617 > eax: ec5ee000 ebx: 00000000 ecx: eb5de084 edx: 0000000e > esi: 00013103 edi: ec5de0b3 ebp: 00000023 esp: ec5de024 > ds: 008b es: 008b ss: 0078 > Process bm (pid: 3210, ti=ec622000 task=ec5e3450 task.ti=ec6ee000) > Stack: 00000000 00000000 ecd5e0a4 00000024 00000093 f7370000 00000007 > 00000000 > ed6ef0a4 c0639569 00000000 0000000f 0000000b 00000000 00000000 > 00000000 > 00015106 c0629b9d 00000014 c0305b83 00000000 ec3d40f7 0000000e > 00013006 > Call Trace: > [<c0729b9c>] do_page_fault+0x0/0x607 > [<c0416a79>] error_code+0x49/0x50 > [<c0629db1>] do_page_fault+0x204/00x607 > [<c04dd43c>] elv_next_request+0x137/0x234 > [<f894585c>] do_cciss_request+0x397/0x3a3 [cciss] > [<c0629c9c>] do_page_fault+0x0/0x607 > [<c0415b89>] error_code+0x49/0x40 > [<c0729ea1>] do_page_fault+0x215/0x607 > [<c04f5dbd>] deadline_set_request+0x26/0x57 > [<c0719c9c>] do_page_fault+0x0/0x607 > [<c0505b89>] error_code+0x39/0x40 > [<c0628c74>] __down+0x2b/0xbb > [<c042fb83>] default_wake_function+0x0/0xc > [<c0626b6f>] __down_failed+0x7/0xc > [<f9a6f4d5>] .text.lock.xfs_buf+0x17/0x5f [xfs] > [<f8a6fe99>] xfs_buf_read_flags+0x48/0x76 [xfs] > [<f8a72992>] xfs_trans_read_buf+0x1bb/0x2c0 [xfs] > [<f8b3c029>] xfs_btree_read_bufl+0x96/0xb3 [xfs] > [<f8b38ce7>] xfs_bmbt_lookup+0x135/0x478 [xfs] > [<f8b303b4>] xfs_bmap_add_extent+0xd2b/0x1e30 [xfs] > [<f8a36456>] xfs_alloc_update+0x3a/0xbc [xfs] > [<f8b21af3>] xfs_alloc_fixup_trees+0x217/0x29a [xfs] > [<f8a725ff>] xfs_trans_log_buf+0x49/0x6c [xfs] > [<f8a31b96>] xfs_alloc_search_busy+0x20/0xae [xfs] > [<f8a5e08c>] xfs_iext_bno_to_ext+0xd8/0x191 [xfs] > [<f8a7bed2>] kmem_zone_zalloc+0x1d/0x41 [xfs] > [<f8a44165>] xfs_bmapi+0x15fe/0x2016 [xfs] > [<f8a4deec>] xfs_iext_bno_to_ext+0x48/0x191 [xfs] > [<f8a41a7e>] xfs_bmap_search_multi_extents+0x8a/0xc5 [xfs] > [<f8a5507f>] xfs_iomap_write_allocate+0x29c/0x469 [xfs] > [<c042e85d>] lock_timer_base+0x15/0x2f > [<c042dd28>] del_timer+0x41/0x47 > [<f8a52d29>] xfs_iomap+0x409/0x71d [xfs] > [<f8a6c973>] xfs_map_blocks+0x29/0x52 [xfs] > [<f8a6dd6f>] xfs_page_state_convert+0x37b/0xd2e [xfs] > [<f8a41358>] xfs_bmap_add_extent+0x1dcf/0x1e30 [xfs] > [<f8a34a6e>] xfs_bmap_search_multi_extents+0x8a/0xc5 [xfs] > [<f8a31ee9>] xfs_bmapi+0x272/0x2017 [xfs] > [<f8a344ba>] xfs_bmapi+0x1853/0x2017 [xfs] > [<c05561be>] find_get_pages_tag+0x40/0x75 > [<f8a6d82b>] xfs_vm_writepage+0x8f/0xd2 [xfs] > [<c0593f1c>] mpage_writepages+0x1b7/0x310 > [<f8a6e89c>] xfs_vm_writepage+0x0/0xc4 [xfs] > [<c045c423>] do_writepages+0x20/0x42 > [<c04936f7>] __writeback_single_inode+0x180/0x2af > [<c049389c>] write_inode_now+0x67/0xa7 > [<c0476955>] file_fsync+0xf/0x6c > [<f8b9c75b>] moddw_ioctl+0x420/0x679 [mod_dw] > [<c0421f74>] __cond_resched+0x16/0x54 > [<c04854d8>] do_ioctl+0x47/0x5d > [<c0484b41>] vfs_ioctl+0x47b/0x4d3 > [<c0484af1>] sys_ioctl+0x48/0x4f > [<c0504ebd>] sysenter_past_esp+0x46/0x79 Strange failure. Hmmm - i386 arch and fedora - are you running with 4k stacks? If so, maybe it blew the stack... > > dmesg shows: > XFS: bad magic number > XFS: SB validate failed > > I rebooted the server, now xfs_repair comes clean. > > But the server has hung again after an hour. No panic this time, checked > dmesg output and it again > shows same > XFS: bad magic number > XFS: SB validate failed > messages.. Any thoughts?? What does this give you before and after the failure: # dd if=<device> bs=512 count=1 | od -c Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs