Andrew Morton wrote:
simon schuler <[email protected]> wrote:
I'm getting an oops sometimes (about 70% probability) when I try to
start a wine application.
last working kernel version: 2.6.15-rc5-mm1
not working: 2.6.15-mm1, 2.6.15-rc5-mm3
not tested: 2.6.15-rc5-mm2
.config is attached.
I don't know if this is a known issue...
If you need more information, let me know.
Unable to handle kernel NULL pointer dereference at virtual address 00000004
printing eip:
c0118755
*pde = 00000000
Oops: 0000 [#1]
last sysfs file: /class/vc/vcsa1/dev
Modules linked in:
CPU: 0
EIP: 0060:[<c0118755>] Not tainted VLI
EFLAGS: 00210282 (2.6.15-mm1)
EIP is at dup_fd+0x25/0x290
eax: eff40c20 ebx: eff40c28 ecx: eff40c20 edx: eff40c58
esi: ead0e000 edi: 00000000 ebp: eff7aaa0 esp: ead0fe48
ds: 007b es: 007b ss: 0068
Process wine (pid: 769, threadinfo=ead0e000 task=eb468ab0)
Stack: <0>00000000 ebbe8854 00000001 ec1abd0c eff40c20 c015b937 ec1abd0c
00000001
<0>00000000 eb468ab0 ead0e000 c0423ebe eff7aaa0 c0118a1c eb468ab0
ead0fe88
<0>fffffff4 eff40ce0 c0118a73 00000000 eb468ab0 00000060 ead0e000
c01867e4
Call Trace:
[<c015b937>] vfs_read+0x127/0x190
[<c0118a1c>] copy_files+0x5c/0x80
[<c0118a73>] unshare_files+0x33/0x70
[<c01867e4>] load_elf_binary+0x174/0xe10
[<c014102f>] get_page_from_freelist+0x7f/0xd0
[<c0259d0f>] copy_from_user+0x3f/0xa0
[<c0259d0f>] copy_from_user+0x3f/0xa0
[<c0166063>] copy_strings+0x163/0x230
[<c0167160>] search_binary_handler+0x50/0x180
[<c0167414>] do_execve+0x184/0x220
[<c0101c4c>] sys_execve+0x3c/0x80
[<c010300b>] sysenter_past_esp+0x54/0x75
Code: bc 27 00 00 00 00 55 57 56 53 83 ec 24 8b 44 24 38 8b b8 64 04 00
00 e8 6a ff ff ff 85 c0 89 44 24 10 0f 84 b6 01 00 00 8b 58 04 <8b> 77
04 89 34 24 e8 d0 fe ff ff 89 44 24 18 31 c0 8b 54 24 18
OK, thanks. It looks like a problem in the new unsharing code...
Thanks. I am investigating the problem now and will send updated patches
as soon as I fix the problem. I am also writing up detailed
justification, design
considerations and test plan. I will include it in the patch set as well.
-Janak
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