Messages in this thread | | | From | Lenar Lõhmus <> | Subject | 2.6.0-test5-mm4 OOPS when initializing MD devices | Date | Sat, 27 Sep 2003 19:27:31 +0300 |
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Hi,
Attached is decoded oops. Happened when booting with 2.6.0-test5-mm4. Machine booted and still boots with 2.6.0-test4-mm6. RAID1 in use.
Lenar ksymoops 2.4.9 on i686 2.6.0-test4-mm6. Options used -v /usr/src/linux-2.6.0-test5/vmlinux (specified) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.6.0-test5-mm4 (specified) -m /boot/System.map (specified)
Error (regular_file): read_ksyms stat /proc/ksyms failed No modules in ksyms, skipping objects No ksyms, skipping lsmod Machine check exception polling timer started. Unable to handle kernel NULL pointer dereference at virtual address 00000000 c024902c *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<c024902c>] Not tainted VLI Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010292 eax: 00000000 ebx: f7c29c00 ecx: f7c05ec0 edx: f7c05ecc esi: f7c05ecc edi: f7fadde0 ebp: f7fadd7c esp: f7fadd64 ds: 007b es: 007b ss: 0068 Stack: f7fadde0 f7fadd7c c0143251 f7c29c00 f7c05ecc f7fadde0 f7faddcc c0249238 00000005 00000000 00000000 00000246 00000001 00000003 f7c05ecc 0000000a 00000400 c02bbbe1 f7faddd8 f7c05ecc f7fadde0 f7faddcc c0187e1a f7c29c00 Call Trace: [<c0143251>] invalidate_inode_pages+0x21/0x30 [<c0249238>] do_md_run+0x128/0x480 [<c0187e1a>] bdevname+0x2a/0x30 [<c02498bf>] autorun_array+0x9f/0xd0 [<c0121adc>] printk+0x13c/0x190 [<c0187e1a>] bdevname+0x2a/0x30 [<c0249afc>] autorun_devices+0x20c/0x250 [<c024c82d>] autostart_arrays+0x2d/0xc9 [<c016e798>] igrab+0x48/0x50 [<c024ae49>] md_ioctl+0x719/0x750 [<c015da5a>] blkdev_open+0x3a/0x80 [<c018cddb>] devfs_open+0x10b/0x110 [<c018ccd0>] devfs_open+0x0/0x110 [<c0154812>] dentry_open+0x142/0x210 [<c01546cb>] filp_open+0x5b/0x60 [<c0210c70>] blkdev_ioctl+0x90/0x3ca [<c0167404>] sys_ioctl+0xf4/0x270 [<c032e11d>] md_run_setup+0x6d/0xd0 [<c032ce89>] prepare_namespace+0x19/0x110 [<c01301b2>] init_workqueues+0x12/0x60 [<c01070da>] init+0x3a/0x160 [<c01070a0>] init+0x0/0x160 [<c0109329>] kernel_thread_helper+0x5/0xc Code: 44 24 04 e8 97 89 ed ff 89 34 24 e8 ef f5 ff ff e9 36 ff ff ff 89 75 cc e9 ca fe ff ff 89 f6 55 89 e5 57 56 53 83 ec 0c 8b 45 0c <8b> 18 89 1c 24 e8 fa de ff ff 85 c0 89 c6 0f 84 89 00 00 00 bf
>>EIP; c024902c <md_probe+c/d0> <=====
>>ebx; f7c29c00 <_end+37869e08/3fc3d208> >>ecx; f7c05ec0 <_end+378460c8/3fc3d208> >>edx; f7c05ecc <_end+378460d4/3fc3d208> >>esi; f7c05ecc <_end+378460d4/3fc3d208> >>edi; f7fadde0 <_end+37bedfe8/3fc3d208> >>ebp; f7fadd7c <_end+37bedf84/3fc3d208> >>esp; f7fadd64 <_end+37bedf6c/3fc3d208>
Trace; c0143251 <invalidate_inode_pages+21/30> Trace; c0249238 <do_md_run+128/480> Trace; c0187e1a <bdevname+2a/30> Trace; c02498bf <autorun_array+9f/d0> Trace; c0121adc <printk+13c/190> Trace; c0187e1a <bdevname+2a/30> Trace; c0249afc <autorun_devices+20c/250> Trace; c024c82d <autostart_arrays+2d/c9> Trace; c016e798 <igrab+48/50> Trace; c024ae49 <md_ioctl+719/750> Trace; c015da5a <blkdev_open+3a/80> Trace; c018cddb <devfs_open+10b/110> Trace; c018ccd0 <devfs_open+0/110> Trace; c0154812 <dentry_open+142/210> Trace; c01546cb <filp_open+5b/60> Trace; c0210c70 <blkdev_ioctl+90/3ca> Trace; c0167404 <sys_ioctl+f4/270> Trace; c032e11d <md_run_setup+6d/d0> Trace; c032ce89 <prepare_namespace+19/110> Trace; c01301b2 <init_workqueues+12/60> Trace; c01070da <init+3a/160> Trace; c01070a0 <init+0/160> Trace; c0109329 <kernel_thread_helper+5/c>
This architecture has variable length instructions, decoding before eip is unreliable, take these instructions with a pinch of salt.
Code; c0249001 <analyze_sbs+191/1b0> 00000000 <_EIP>: Code; c0249001 <analyze_sbs+191/1b0> 0: 44 inc %esp Code; c0249002 <analyze_sbs+192/1b0> 1: 24 04 and $0x4,%al Code; c0249004 <analyze_sbs+194/1b0> 3: e8 97 89 ed ff call ffed899f <_EIP+0xffed899f> Code; c0249009 <analyze_sbs+199/1b0> 8: 89 34 24 mov %esi,(%esp,1) Code; c024900c <analyze_sbs+19c/1b0> b: e8 ef f5 ff ff call fffff5ff <_EIP+0xfffff5ff> Code; c0249011 <analyze_sbs+1a1/1b0> 10: e9 36 ff ff ff jmp ffffff4b <_EIP+0xffffff4b> Code; c0249016 <analyze_sbs+1a6/1b0> 15: 89 75 cc mov %esi,0xffffffcc(%ebp) Code; c0249019 <analyze_sbs+1a9/1b0> 18: e9 ca fe ff ff jmp fffffee7 <_EIP+0xfffffee7> Code; c024901e <analyze_sbs+1ae/1b0> 1d: 89 f6 mov %esi,%esi Code; c0249020 <md_probe+0/d0> 1f: 55 push %ebp Code; c0249021 <md_probe+1/d0> 20: 89 e5 mov %esp,%ebp Code; c0249023 <md_probe+3/d0> 22: 57 push %edi Code; c0249024 <md_probe+4/d0> 23: 56 push %esi Code; c0249025 <md_probe+5/d0> 24: 53 push %ebx Code; c0249026 <md_probe+6/d0> 25: 83 ec 0c sub $0xc,%esp Code; c0249029 <md_probe+9/d0> 28: 8b 45 0c mov 0xc(%ebp),%eax
This decode from eip onwards should be reliable
Code; c024902c <md_probe+c/d0> 00000000 <_EIP>: Code; c024902c <md_probe+c/d0> <===== 0: 8b 18 mov (%eax),%ebx <===== Code; c024902e <md_probe+e/d0> 2: 89 1c 24 mov %ebx,(%esp,1) Code; c0249031 <md_probe+11/d0> 5: e8 fa de ff ff call ffffdf04 <_EIP+0xffffdf04> Code; c0249036 <md_probe+16/d0> a: 85 c0 test %eax,%eax Code; c0249038 <md_probe+18/d0> c: 89 c6 mov %eax,%esi Code; c024903a <md_probe+1a/d0> e: 0f 84 89 00 00 00 je 9d <_EIP+0x9d> Code; c0249040 <md_probe+20/d0> 14: bf .byte 0xbf
1 error issued. Results may not be reliable.
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