Messages in this thread | | | From | Ed Tomlinson <> | Subject | Re: 2.5.46-mm2 - oops | Date | Sun, 10 Nov 2002 13:14:58 -0500 |
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On November 9, 2002 10:59 pm, Andrew Morton wrote:
> Of note in -mm2 is a patch from Chris Mason which teaches reiserfs to > use the mpage code for reads - it should show a nice reduction in CPU > load under reiserfs reads.
Booting into mm2 I get:
VFS: Mounted root (reiserfs filesystem) readonly. Freeing unused kernel memory: 96k freed Unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: c015f967 *pde = 00000000 Oops: 0000
CPU: 0 EIP: 0060:[<c015f967>] Not tainted EFLAGS: 00010203 EIP is at mpage_readpages+0x47/0x140 eax: df8db954 ebx: 00000000 ecx: dff89c30 edx: dff89c30 esi: 00000007 edi: 00000000 ebp: dff89c30 esp: dff89b1c ds: 0068 es: 0068 ss: 0068 Process swapper (pid: 1, threadinfo=dff88000 task=c151e040) Stack: 00000000 00000000 00000000 00000000 00000000 c0325760 dfb62cd4 c0145054 c0325740 c0145078 df90e6bc df90e6bc dfb62cd4 df90e654 df9577f4 df90e6f0 df90e688 dfb18620 c172f654 dfa33348 dfb62cd4 00002e7c 00000000 00000007 Call Trace: [<c0145054>] bh_lru_install+0x94/0x100 [<c0145078>] bh_lru_install+0xb8/0x100 [<c0187716>] reiserfs_readpages+0x16/0x20 [<c01847e0>] reiserfs_get_block+0x0/0x1000 [<c013b9ac>] read_pages+0xec/0x100 [<c0135d2c>] buffered_rmqueue+0xcc/0x180 [<c01360a1>] __alloc_pages+0x81/0x220 [<c013ba91>] do_page_cache_readahead+0xd1/0x160 [<c013bb78>] page_cache_readahead+0x58/0x160 [<c012dc4d>] do_generic_mapping_read+0x8d/0x3c0 [<c012dfc0>] file_read_actor+0x0/0xe0 [<c012e23f>] __generic_file_aio_read+0x19f/0x1e0 [<c012dfc0>] file_read_actor+0x0/0xe0 [<c012e358>] generic_file_read+0x78/0xa0 [<c011609e>] mm_init+0xbe/0x100 [<c0142546>] vfs_read+0xa6/0x100 [<c014bbf8>] kernel_read+0x38/0x60 [<c014bfed>] prepare_binprm+0xad/0xc0 [<c014c570>] do_execve+0x1b0/0x260 [<c0107833>] sys_execve+0x33/0x60 [<c0109057>] syscall_call+0x7/0xb [<c010511f>] init+0xdf/0x160 [<c0105040>] init+0x0/0x160 [<c01070a1>] kernel_thread_helper+0x5/0x24
Code: 8b 43 04 8d 73 f8 8b 13 89 42 04 89 10 ff 76 14 ff 74 24 74 <0>Kernel panic: Attempted to kill init!
or trying a second time:
found reiserfs format "3.6" with standard journal Reiserfs journal params: device ide2(33,3), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 reiserfs: checking transaction log (ide2(33,3)) for (ide2(33,3)) Using r5 hash to sort names VFS: Mounted root (reiserfs filesystem) readonly. Freeing unused kernel memory: 96k freed Unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: c015f967 *pde = 00000000 Oops: 0000
CPU: 0 EIP: 0060:[<c015f967>] Not tainted EFLAGS: 00010203 EIP is at mpage_readpages+0x47/0x140 eax: c17d5954 ebx: 00000000 ecx: dff89c30 edx: dff89c30 esi: 00000007 edi: 00000000 ebp: dff89c30 esp: dff89b1c ds: 0068 es: 0068 ss: 0068 Process swapper (pid: 1, threadinfo=dff88000 task=c151e040) Stack: 00000000 00000000 00000000 00000000 00000000 c151e040 c0320400 00000000 c01145a6 dff89b60 00000000 c151e040 00000004 00000004 dffe8b34 dffe8b34 dff89b88 c03a5b20 c0143d6d 00000000 c151e040 c0115ec0 dff89b94 00000007 Call Trace: [<c01145a6>] do_schedule+0x186/0x300 [<c0143d6d>] __wait_on_buffer+0xad/0xc0 [<c0115ec0>] autoremove_wake_function+0x0/0x40 [<c0187716>] reiserfs_readpages+0x16/0x20 [<c01847e0>] reiserfs_get_block+0x0/0x1000 [<c013b9ac>] read_pages+0xec/0x100 [<c0135d2c>] buffered_rmqueue+0xcc/0x180 [<c01360a1>] __alloc_pages+0x81/0x220 [<c013ba91>] do_page_cache_readahead+0xd1/0x160 [<c013bb78>] page_cache_readahead+0x58/0x160 [<c012dc4d>] do_generic_mapping_read+0x8d/0x3c0 [<c012dfc0>] file_read_actor+0x0/0xe0 [<c012e23f>] __generic_file_aio_read+0x19f/0x1e0 [<c012dfc0>] file_read_actor+0x0/0xe0 [<c012e358>] generic_file_read+0x78/0xa0 [<c011609e>] mm_init+0xbe/0x100 [<c0142546>] vfs_read+0xa6/0x100 [<c014bbf8>] kernel_read+0x38/0x60 [<c014bfed>] prepare_binprm+0xad/0xc0 [<c014c570>] do_execve+0x1b0/0x260 [<c0107833>] sys_execve+0x33/0x60 [<c0109057>] syscall_call+0x7/0xb [<c010511f>] init+0xdf/0x160 [<c0105040>] init+0x0/0x160 [<c01070a1>] kernel_thread_helper+0x5/0x24
Code: 8b 43 04 8d 73 f8 8b 13 89 42 04 89 10 ff 76 14 ff 74 24 74 <0>Kernel panic: Attempted to kill init!
Hope this helps Ed Tomlinson
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