Kernel oops during heavy I/O on Software RAID device with LVM and XFS (or JFS or reiser)
I'm using raid 10 mirrored stripes.
Linux version 2.6.6 (root@calculon) (gcc version 3.3.3 20040412 (Gentoo Linux 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #2 SMP Fri Nov 19 16:22:24 CST 2004 Linux version 2.6.8.1 (root@calculon) (gcc version 3.3.3 20040412 (Gentoo Linux 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #3 SMP Fri Nov 19 16:23:17 CST 2004 Linux version 2.6.9 (root@calculon) (gcc version 3.3.3 20040412 (Gentoo Linux 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #5 SMP Fri Nov 19 17:03:00 CST 2004 Linux version 2.6.10-rc2-bk4 (root@calculon) (gcc version 3.3.3 20040412 (Gentoo Linux 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #2 SMP Fri Nov 19 16:24:16 CST 2004
2.6.6
Oops: 0000 [#1] SMP CPU: 10 EIP: 0060:[] Not tainted EFLAGS: 00010017 (2.6.6) EIP is at do_page_fault+0x44/0x502 eax: f6d2c000 ebx: 00000296 ecx: 0000007b edx: 7ebf2381 esi: 00000000 edi: c0114b69 ebp: 00000000 esp: f6d2c0ac ds: 007b es: 007b ss: 0068 Process (pid: 0, threadinfo=f6d2b000 task=e7aac000) Stack: 00000000 00000000 00000000 00000000 00000000 00000068 00000000 00000000 00030001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Call Trace: [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x502 [ ] do_page_fault+0x44/0x502 [ ] do_page_fault+0x0/0x502 [ ] error_code+0x2d/0x38 ======================= Unable to handle kernel paging request at virtual address 3d00000a printing eip: c0104be4 *pde = 00000000
2.6.8.1
Oops: 0000 [#1] SMP Modules linked in: CPU: 7 EIP: 0060:[] Not tainted EFLAGS: 00010017 (2.6.8.1) EIP is at do_page_fault+0x44/0x544 eax: f6db0000 ebx: f7180300 ecx: 0000007b edx: 00000000 esi: 00000000 edi: c01169d5 ebp: 00000000 esp: f6db0088 ds: 007b es: 007b ss: 0068 Process (pid: 0, threadinfo=f6daf000 task=f6e78000)<1>Unable to handle kernel paging request at virtual address 9fbc92c4 printing eip: c01179d6 *pde = 00000000 Stack: 00000100 f6db0100 00000007 0000ffff 00020001 00000068 00060005 0000ffff 00030001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Call Trace: [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 [ ] do_page_fault+0x0/0x544 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x544 [ ] do_page_fault+0x44/0x544 Code: 8b 5d 68 85 d2 0f 85 d5 03 00 00 85 db 0f 84 cd 03 00 00 8d Unable to handle kernel paging request at virtual address 14ab36c2 printing eip: c0124652 *pde = 00000000
2.6.9
dm_table_unplug_all+0x41/0x43 [] __down_failed+0x8/0xc [ ] .text.lock.xfs_buf+0x37/0x3c [ ] pagebuf_iostart+0x6b/0xa3 [ ] pagebuf_get+0x143/0x1a1 [ ] xfs_trans_read_buf+0x178/0x347 [ ] xfs_btree_read_bufs+0x74/0x8b [ ] xfs_alloc_lookup+0x117/0x42d [ ] kmem_zone_zalloc+0x35/0x62 [ ] xfs_alloc_ag_vextent_size+0x71/0x505 [ ] xfs_alloc_ag_vextent+0xff/0x125 [ ] xfs_alloc_vextent+0x400/0x4fc [ ] xfs_bmap_alloc+0xa48/0x1884 [ ] autoremove_wake_function+0x0/0x57 [ ] autoremove_wake_function+0x0/0x57 [ ] xfs_bmbt_get_state+0x2f/0x3b [ ] xfs_bmap_do_search_extents+0xf0/0x453 [ ] xfs_bmapi+0x5b7/0x1773 [ ] xfs_bmbt_get_state+0x2f/0x3b [ ] xfs_bmap_do_search_extents+0xf0/0x453 [ ] smp_apic_timer_interrupt+0x90/0xfa [ ] kmem_zone_zalloc+0x35/0x62 [ ] xfs_log_reserve+0xd4/0xdd [ ] xfs_iomap_write_allocate+0x2cb/0x5a6 [ ] xfs_mod_incore_sb+0x45/0x53 [ ] xfs_iomap+0x40a/0x546 [ ] xfs_map_blocks+0x5b/0x95 [ ] xfs_page_state_convert+0x564/0x69e [ ] xfs_bmapi+0x2bc/0x1773 [ ] test_clear_page_dirty+0xc8/0xdf [ ] linvfs_writepage+0x65/0xfa [ ] pageout+0xae/0xf3 [ ] shrink_list+0x1f2/0x42c [ ] __pagevec_release+0x28/0x36 [ ] shrink_cache+0x17f/0x3b9 [ ] shrink_zone+0xb6/0xd0 [ ] shrink_caches+0x6b/0x6d [ ] try_to_free_pages+0xbe/0x1a1 [ ] __alloc_pages+0x212/0x35e [ ] generic_file_buffered_write+0x119/0x635 [ ] update_atime+0xd0/0xd5 [ ] xfs_trans_unlocked_item+0x39/0x57 [ ] xfs_write+0x9eb/0xc24 [ ] xfs_ichgtime+0x10a/0x10c [ ] linvfs_write+0x8c/0x9d [ ] do_sync_write+0xbe/0xeb [ ] autoremove_wake_function+0x0/0x57 [ ] dnotify_parent+0x3a/0xa6 [ ] do_sync_write+0x0/0xeb [ ] vfs_write+0xb0/0x119 [ ] sys_write+0x51/0x80 [ ] syscall_call+0x7/0xb ======================= [ ] read_profile+0x0/0xc0 [ ] write_profile+0x0/0x9d [ ] cpu_callback+0x0/0xd8 [ ] r_start+0x0/0x8c [ ] r_stop+0x0/0xa [ ] r_next+0x0/0x3c [ ] r_show+0x0/0x82 [ ] seq_lseek+0x0/0xff [ ] seq_read+0x0/0x29b [ ] ioports_open+0x0/0x38 [ ] seq_release+0x0/0x2d [ ] seq_lseek+0x0/0xff [ ] seq_read+0x0/0x29b [ ] iomem_open+0x0/0x38 [ ] seq_release+0x0/0x2d [ ] proc_readsys+0x0/0x33 [ ] proc_writesys+0x0/0x33 [ ] proc_opensys+0x0/0x1d [ ] proc_doutsstring+0x0/0xd9 [ ] sysctl_string+0x0/0x15a [ ] proc_doutsstring+0x0/0xd9 [ ] sysctl_string+0x0/0x15a ======================= Unable to handle kernel NULL pointer dereference at virtual address 00000070 printing eip: c0116d0e *pde = 00000000 kernel BUG at kernel/sched.c:921! invalid operand: 0000 [#1] SMP Modules linked in: CPU: 3 EIP: 0060:[ ] Not tainted VLI EFLAGS: 00010002 (2.6.9) EIP is at resched_task+0x7c/0x86 eax: 00000001 ebx: ef050000 ecx: c3043020 edx: 00000001 esi: f70ef7b0 edi: 00000000 ebp: e3b2e8e4 esp: e3b2e8dc ds: 007b es: 007b ss: 0068 Process pdflush (pid: 6426, threadinfo=e3b2e000 task=f709b1d0) Stack: f7b6a990 00000282 e3b2e92c c01184e3 f70ef7b0 c3043020 00000000 00000000 c0140584 00000002 00000080 c3043020 00000001 00000000 00000003 00000002 00000096 dedf0fa4 00000282 c013d6b3 e3b2e940 c011857c f7b6a990 0000000f Call Trace: [ ] try_to_wake_up+0x1f1/0x26c [ ] cache_grow+0xab/0x14d [ ] background_writeout+0x0/0xa7 [ ] wake_up_process+0x1e/0x22 [ ] pdflush_operation+0x74/0xb0 [ ] wakeup_bdflush+0x1b/0x35 [ ] background_writeout+0x0/0xa7 [ ] mempool_alloc+0xab/0x13a [ ] autoremove_wake_function+0x0/0x57 [ ] autoremove_wake_function+0x0/0x57 [ ] autoremove_wake_function+0x0/0x57 [ ] bio_alloc+0x20/0x1ac [ ] autoremove_wake_function+0x0/0x57 [ ] bio_clone+0x1d/0x91 [ ] make_request+0x207/0x311 [ ] autoremove_wake_function+0x0/0x57 [ ] generic_make_request+0x163/0x1e3 [ ] __map_bio+0x4a/0x11b [ ] __clone_and_map+0xff/0x37b [ ] __split_bio+0xb4/0x139 [ ] dm_request+0x71/0xa3 [ ] generic_make_request+0x163/0x1e3 [ ] mempool_alloc+0x6f/0x13a [ ] autoremove_wake_function+0x0/0x57 [ ] submit_bio+0x70/0x120 [ ] bio_alloc+0xd9/0x1ac [ ] submit_bh+0x138/0x193 [ ] xfs_submit_page+0xab/0xdd [ ] xfs_convert_page+0xed/0x282 [ ] find_trylock_page+0x4a/0x58 [ ] xfs_probe_delalloc_page+0x1f/0x84 [ ] xfs_cluster_write+0x67/0x6d [ ] xfs_page_state_convert+0x2f5/0x69e [ ] unplug_slaves+0x8c/0xa6 [ ] find_get_pages_tag+0x71/0x7b [ ] linvfs_writepage+0x65/0xfa [ ] mpage_writepages+0x277/0x3c9 [ ] linvfs_writepage+0x0/0xfa [ ] do_writepages+0x3d/0x43 [ ] __sync_single_inode+0x63/0x1e5 [ ] sync_sb_inodes+0x19e/0x28e [ ] writeback_inodes+0xc4/0xd0 [ ] background_writeout+0x6b/0xa7 [ ] pdflush+0x0/0x2c [ ] __pdflush+0xbf/0x19d [ ] pdflush+0x28/0x2c [ ] background_writeout+0x0/0xa7 [ ] pdflush+0x0/0x2c [ ] kthread+0xb7/0xbd [ ] kthread+0x0/0xbd [ ] kernel_thread_helper+0x5/0xb Code: 53 10 b8 00 f0 ff ff 21 e0 3b 50 10 74 12 89 55 08 8b 1c 24 8b 74 24 04 89 ec 5d e9 74 b5 ff ff 8b 1c 24 8b 74 24 04 89 ec 5d c3 <0f> 0b 99 03 8b bb 48 c0 eb a3 55 89 e5 83 ec 0c 89 1c 24 89 74 <1>Oops: 0000 [#2] SMP Modules linked in: CPU: 75 EIP: 0060:[ ] Not tainted VLI EFLAGS: 00010017 (2.6.9) EIP is at do_page_fault+0x99/0x599 eax: ef030000 ebx: 4b840f04 ecx: 0000007b edx: 00000000 esi: 00000000 edi: c0116c75 ebp: 00000000 esp: ef030034 ds: 007b es: 007b ss: 0068 Process มเ (pid: 4063293, threadinfo=ef02f000 task=e0c10000) Stack: c05c904c 0000000d ef03004c 00000000 00000000 00000070 ef030108 c048b87c 00000000 0000000e 0000000b 00000000 00000000 00000000 00000000 00000000 00030001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Call Trace: [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x99/0x599 ======================= Unable to handle kernel paging request at virtual address 00010017 printing eip: c0105cdb *pde = 00000000 Oops: 0000 [#3] SMP Modules linked in: CPU: 75 EIP: 0060:[ ] Not tainted VLI EFLAGS: 00010006 (2.6.9) EIP is at print_context_stack+0x19/0x64 eax: 0001001a ebx: 00010000 ecx: c04e2b28 edx: 00000086 esi: 00010017 edi: e0c10000 ebp: 00000068 esp: ef02fe6c ds: 007b es: 007b ss: 0068 Process มเ (pid: 4063293, threadinfo=ef02f000 task=e0c10000) Stack: e0c10000 c011d886 00010000 00010017 c0105d74 e0c10000 00010017 00000068 ef030094 00000018 00000000 00000068 c0105e36 00000000 ef030034 ef02f000 ef030000 00000000 c0105fc7 00000000 ef030034 003e003d ef02f000 e0c10000 Call Trace: [ ] printk+0x17/0x1b [ ] show_trace+0x4e/0x8e [ ] show_stack+0x82/0x97 [ ] show_registers+0x15c/0x1c0 [ ] die+0x101/0x189 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x2d3/0x599 [ ] end_buffer_async_write+0x0/0xe9 [ ] end_buffer_async_write+0x0/0xe9 [ ] end_buffer_async_write+0x0/0xe9 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 ======================= Unable to handle kernel paging request at virtual address 000e000b printing eip: c0105cdb *pde = 00000000 Recursive die() failure, output suppressed <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c0107a6f *pde = 00000000 Oops: 0002 [#4] SMP Modules linked in: CPU: 75 EIP: 0060:[ ] Not tainted VLI EFLAGS: 00010086 (2.6.9) EIP is at do_IRQ+0xba/0x19a eax: e0c10000 ebx: 00000ff4 ecx: c04e2b28 edx: ef02fb28 esi: 00000000 edi: 00000063 ebp: c0585980 esp: ef02fafc ds: 007b es: 007b ss: 0068 Process มเ (pid: 4063293, threadinfo=ef02f000 task=e0c10000) Stack: 00000063 f7da15b8 00000000 ef02f000 c0585998 f7f5cb20 ef02f000 ef02fc70 c048b8de e0c10000 c0105930 ef02f000 c04e2b28 00000082 ef02fc70 c048b8de e0c10000 c04e0b7c c04b007b ef02007b ffffff63 c01061f1 00000060 00000286 Call Trace: [ ] common_interrupt+0x18/0x20 [ ] die+0x128/0x189 [ ] vprintk+0x127/0x16d [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x2d3/0x599 [ ] end_buffer_async_write+0x0/0xe9 [ ] __delay+0x12/0x16 [ ] serial8250_console_write+0x14e/0x23c [ ] __delay+0x12/0x16 [ ] serial8250_console_write+0x14e/0x23c [ ] __call_console_drivers+0x55/0x57 [ ] call_console_drivers+0x69/0x11f [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] print_context_stack+0x19/0x64 [ ] printk+0x17/0x1b [ ] show_trace+0x4e/0x8e [ ] show_stack+0x82/0x97 [ ] show_registers+0x15c/0x1c0 [ ] die+0x101/0x189 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x2d3/0x599 [ ] end_buffer_async_write+0x0/0xe9 [ ] __delay+0x12/0x16 [ ] serial8250_console_write+0x14e/0x23c [ ] __delay+0x12/0x16 [ ] serial8250_console_write+0x14e/0x23c [ ] __call_console_drivers+0x55/0x57 [ ] call_console_drivers+0x69/0x11f [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 [ ] print_context_stack+0x19/0x64 [ ] printk+0x17/0x1b [ ] show_trace+0x4e/0x8e [ ] show_stack+0x82/0x97 [ ] show_registers+0x15c/0x1c0 [ ] die+0x101/0x189 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x0/0x599 [ ] do_page_fault+0x2d3/0x599 [ ] end_buffer_async_write+0x0/0xe9 [ ] end_buffer_async_write+0x0/0xe9 [ ] end_buffer_async_write+0x0/0xe9 [ ] do_page_fault+0x0/0x599 [ ] error_code+0x2d/0x38 ======================= Unable to handle kernel paging request at virtual address 000e000b printing eip: c0105cdb *pde = 00000000 Oops: 0000 [#5] SMP Modules linked in: CPU: 75 EIP: 0060:[ ] Not tainted VLI EFLAGS: 00010006 (2.6.9) EIP is at print_context_stack+0x19/0x64 eax: 000e000e ebx: 000e0000 ecx: c04e2b28 edx: 00000086 esi: 000e000b edi: e0c10000 ebp: 00000068 esp: ef02f934 ds: 007b es: 007b ss: 0068 Process มเ (pid: 4063293, threadinfo=ef02f000 task=e0c10000) Stack: e0c10000 c011d886 000e0000 000e000b c0105d74 e0c10000 000e000b 00000068 ef02fb5c 00000018 00000000 00000068 c0105e36 00000000 ef02fafc ef02f000 ef02fac8 00000000 c0105fc7 00000000 ef02fafc 003e003d ef02f000 e0c10000 Call Trace: [ ] printk+0x17/0x1b [ ] show_trace+0x4e/0x8e [ ] show_stack+0x82/0x97 [