Messages in this thread | | | Date | Sun, 1 Dec 2002 02:55:03 +0100 | From | "J.A. Magallon" <> | Subject | Re: [PATCHSET] Linux 2.4.20-jam0 |
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On 2002.11.30 Andrea Arcangeli wrote: >On Sat, Nov 30, 2002 at 12:38:07AM +0100, J.A. Magallon wrote: >> - reverted the fast-pte part of -aa. Still have to try again >> to see if it is more stable now. > >AFIK this was reproduced by Srihari on nohighmem so it must be that >somebody is calling pgd_free_fast on a pgd that cannot be re-used. >Can you try this patch on top of 2.4.20rc2aa1? (or jam0 after backing >out the fast-pte removal that would otherwise forbid the debugging check >to trigger) >
I suppose this will be useless (tainted ;)) BTW, what does mean the symbol address mismatch ?
ksymoops 2.4.8 on i686 2.4.20-jam1. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.20-jam1/ (default) -m /boot/System.map-2.4.20-jam1 (default)
Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options.
Warning (compare_maps): mismatch on symbol __nvsym03120 , nvdriver says 692dac20, /lib/modules/2.4.20-jam1/video/nvdriver.o says 692d3560. Ignoring /lib/modules/2.4.20-jam1/video/nvdriver.o entry Dec 1 02:35:57 werewolf kernel: Unable to handle kernel paging request at virtual address 47000be8 Dec 1 02:35:57 werewolf kernel: 4012060d Dec 1 02:35:57 werewolf kernel: *pde = 070001e3 Dec 1 02:35:57 werewolf kernel: Oops: 0000 2.4.20-jam1 #4 SMP dom dic 1 00:44:09 CET 2002 Dec 1 02:35:57 werewolf kernel: CPU: 0 Dec 1 02:35:57 werewolf kernel: EIP: 0010:[dup_mmap+285/458] Tainted: P Dec 1 02:35:57 werewolf kernel: EIP: 0010:[<4012060d>] Tainted: P Using defaults from ksymoops -t elf32-i386 -a i386 Dec 1 02:35:57 werewolf kernel: EFLAGS: 00010202 Dec 1 02:35:57 werewolf kernel: eax: 42527780 ebx: 4387b6e0 ecx: 00000000 edx: 47000be0 Dec 1 02:35:57 werewolf kernel: esi: 467a5544 edi: 4387b724 ebp: 467a5500 esp: 4504bf28 Dec 1 02:35:57 werewolf kernel: ds: 0018 es: 0018 ss: 0018 Dec 1 02:35:57 werewolf kernel: Process rc (pid: 3543, stackpage=4504b000) Dec 1 02:35:57 werewolf kernel: Stack: 419afeac 000001f0 46c62a80 4504a000 46c62a8c 42527820 4252783c 4252780c Dec 1 02:35:57 werewolf kernel: 42527780 4011f65c 42527780 000001f0 fffffff4 5046e000 43273a64 42cd0aa4 Dec 1 02:35:57 werewolf kernel: 00000011 4011fdfb 00000011 5046e000 4504bf98 4504bf98 4504bfa8 00000000 Dec 1 02:35:57 werewolf kernel: Call Trace: [copy_mm+252/352] [do_fork+843/2272] [sys_fork+39/48] [system_call+51/56] Dec 1 02:35:57 werewolf kernel: Call Trace: [<4011f65c>] [<4011fdfb>] [<40107d07>] [<40109777>] Dec 1 02:35:57 werewolf kernel: Code: 8b 42 08 8b 48 08 f0 ff 42 14 f6 43 15 08 74 07 f0 ff 89 18
>>EIP; 4012060d <dup_mmap+11d/1ca> <=====
>>eax; 42527780 <[videodev].data.end+c8341/110c21> >>ebx; 4387b6e0 <[8390].rodata.end+d00291/34bcc11> >>edx; 47000be0 <[mii].text.end+c8e404/122d884> >>esi; 467a5544 <[mii].text.end+432d68/122d884> >>edi; 4387b724 <[8390].rodata.end+d002d5/34bcc11> >>ebp; 467a5500 <[mii].text.end+432d24/122d884> >>esp; 4504bf28 <[8390].rodata.end+24d0ad9/34bcc11>
Trace; 4011f65c <copy_mm+fc/160> Trace; 4011fdfb <do_fork+34b/8e0> Trace; 40107d07 <sys_fork+27/30> Trace; 40109777 <system_call+33/38>
Code; 4012060d <dup_mmap+11d/1ca> 00000000 <_EIP>: Code; 4012060d <dup_mmap+11d/1ca> <===== 0: 8b 42 08 mov 0x8(%edx),%eax <===== Code; 40120610 <dup_mmap+120/1ca> 3: 8b 48 08 mov 0x8(%eax),%ecx Code; 40120613 <dup_mmap+123/1ca> 6: f0 ff 42 14 lock incl 0x14(%edx) Code; 40120617 <dup_mmap+127/1ca> a: f6 43 15 08 testb $0x8,0x15(%ebx) Code; 4012061b <dup_mmap+12b/1ca> e: 74 07 je 17 <_EIP+0x17> 40120624 <dup_mmap+134/1ca> Code; 4012061d <dup_mmap+12d/1ca> 10: f0 ff 89 18 00 00 00 lock decl 0x18(%ecx)
2 warnings issued. Results may not be reliable.
-- J.A. Magallon <jamagallon@able.es> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.1 (Cooker) for i586 Linux 2.4.20-jam1 (gcc 3.2 (Mandrake Linux 9.1 3.2-4mdk)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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