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List:       linux-kernel
Subject:    Re: OOPS in 2.0.28 with smb filesystem
From:       Stephan Meyer <sensei () munich ! netsurf ! de>
Date:       1997-01-31 21:00:57
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It almost certainly is not the fault of the "getmhz" patch, since the code
only gets executed when /proc/cpuinfo is read.

Stephan

On Fri, 31 Jan 1997, Rick Cook wrote:
> Hello all,
> 
> I upgraded to 2.0.28 (with the "getmhz" patch) from 2.0.25 yesterday. Today, 
> when I attempted to "ls" an smbmount'd directory (first attempt with 2.0.28),
> I first got a segmentation fault, then an "infinitely" running ls (kill -9 
> does not kill) process with the following OOPS:
> 
> 
> Unable to handle kernel paging request at virtual address c282f0fa
> current->tss.cr3 = 00dae000, 
> *pde = 0009e067
> *pte = 00000000
> Oops: 0000
> CPU:    0
> EIP:    0010:[<00172507>]
> EFLAGS: 00010246
> eax: 00a06018   ebx: 00000001   ecx: 00000014   edx: 00000154
> esi: 00a06018   edi: 0282f0e0   ebp: 0282f0e0   esp: 00940aa0
> ds: 0018   es: 0018   fs: 002b   gs: 002b   ss: 0018
> Process ls (pid: 8262, process nr: 38, stackpage=00940000)
> Stack: 0282a3d8 0000002f 0000002a 0282f0e0 0017289a 00a06018 0282f0e0 
> 0282a3d8
>        00000001 00000002 0074be88 0074be88 013c7800 0000002a 00940b18 
> 00000003
>        00000001 00000001 00000001 0000002f 00000000 0000002c 0000002a 
> 0282d000
> Call Trace: [<0282a3d8>] [<0282f0e0>] [<0017289a>] [<0282f0e0>] [<0282a3d8>] 
> [<0282d000>] [<0282dfef>]
>        [<0011be83>] [<0011be83>] [<0011969f>] [<00119723>] [<0011959c>] 
> [<0010a780>] [<001106e8>] [<001105cc>]
>        [<0010a780>] [<0012e247>] [<0012f349>] [<00123c6a>] [<00159c8c>] 
> [<0015a1c4>] [<0012454a>] [<0015af60>]
>        [<0015b091>] [<00111598>] [<00172949>] [<02827000>] [<001753b7>] 
> [<02827000>] [<00175629>] [<0012c6ef>]
>        [<0012c5b4>] [<0010a5f5>] 
> Code: 0f b6 5f 1a 8b 4c 24 1c 89 99 38 01 00 00 8b 6c 24 1c 83 c5 
> 
> 
> ksymoops says (no surprise, its in smb...):
> 
> Using `/System.map' to map addresses to symbols.
> 
> >>EIP: 172507 <smb_decode_long_dirent+27/138>
> Trace: 282a3d8
> Trace: 282f0e0
> Trace: 17289a <smb_proc_readdir_long+282/30c>
> Trace: 282f0e0
> Trace: 282a3d8
> Trace: 282d000
> Trace: 282dfef
> Trace: 11be83 <filemap_nopage+ef/298>
> Trace: 11be83 <filemap_nopage+ef/298>
> Trace: 11969f <do_no_page+103/328>
> Trace: 119723 <do_no_page+187/328>
> Trace: 119723 <do_no_page+187/328>
> Trace: 10a780 <error_code+40/50>
> Trace: 1106e8 <do_page_fault+11c/2cc>
> Trace: 1106e8 <do_page_fault+11c/2cc>
> Trace: 10a780 <error_code+40/50>
> Trace: 12e247 <padzero+2f/3c>
> Trace: 12f349 <load_elf_binary+a95/b30>
> Trace: 123c6a <getblk+3a/468>
> Trace: 159c8c <inode_getblk+44/198>
> Trace: 15a1c4 <ext2_getblk+b8/22c>
> Trace: 12454a <__brelse+22/44>
> Trace: 15af60 <ext2_find_entry+21c/2cc>
> Trace: 15b091 <ext2_lookup+81/170>
> Trace: 111598 <timer_bh+b8/14c>
> Trace: 172949 <smb_proc_readdir+25/3c>
> Trace: 2827000
> Trace: 1753b7 <smb_refill_dir_cache+37/130>
> Trace: 2827000
> Trace: 175629 <smb_readdir+179/240>
> Trace: 12c6ef <sys_getdents+97/c8>
> Trace: 12c5b4 <filldir>
> Trace: 10a5f5 <system_call+55/80>
> 
> Code: 172507 <smb_decode_long_dirent+27/138> movzbl 0x1a(%edi),%ebx
> Code: 17250b <smb_decode_long_dirent+2b/138> movl   0x1c(%esp,1),%ecx
> Code: 17250f <smb_decode_long_dirent+2f/138> movl   %ebx,0x138(%ecx)
> Code: 172515 <smb_decode_long_dirent+35/138> movl   0x1c(%esp,1),%ebp
> Code: 172519 <smb_decode_long_dirent+39/138> addl   $0x0,%ebp
> Code: 17251c <smb_decode_long_dirent+3c/138> nop    
> Code: 17251d <smb_decode_long_dirent+3d/138> nop    
> Code: 17251e <smb_decode_long_dirent+3e/138> nop    
> 
> 
> Any suggestions?
> 
> Thanks,
> 
> Rick Cook
> -- 
> Work:	cook@vs.lmco.com
> Home:	cookrick@ix.netcom.com
> 
> 
> 
> 

-----------------------------------------------
Stephan Meyer
+49-89-4301114
Stephan.Meyer@munich.netsurf.de
http://fatman.mathematik.tu-muenchen.de/~meyer/
-----------------------------------------------


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