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Subject2.4.21pre7(ac1) - BUG at filemap.c:81
Date
Hi,

With kernel 2.4.21pre7 as well as kernel 2.4.21pre7-ac1 I get a message
about a "kernel BUG at filemap.c:81!" (see below). The message comes
"from time to time" (but the system seems to keep running without
problems). The bug can be reproduced by doing a hdparm -tT. The T part
(disk reads) is not completed but the message below is displayed.

The Kernel is also patched with the latest acpi patch as well as with
the i810 (lite) framebuffer driver.
A full dmesg along with an lspci can be found at
http://www.wnk.at/tmp/dmesg.txt and
http://www.wnk.at/tmp/lspci.txt


kernel message when running "hdparm -tT"; system keeps running:

kernel BUG at filemap.c:81!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c012d03e>] Not tainted
EFLAGS: 00010206
eax: 0a610000 ebx: 00000000 ecx: c11a5fe0 edx: cfe75c5c
esi: c11a5fe0 edi: cfe75c5c ebp: cd98a820 esp: cd66feb4
ds: 0018 es: 0018 ss: 0018
Process hdparm (pid: 248, stackpage=cd66f000)
Stack: 00000000 c012da32 cd6767e4 00003643 cfe75c5c c012dad6 c11a5fe0 cd6767e4
00003643 cfe75c5c c11a5fe0 00000004 0000363f cd98a820 004a8530 c012e119
0000001f 00000020 00003621 cd98a820 c11a663c cd6767e4 00003621 c012e50c
Call Trace: [<c012da32>] [<c012dad6>] [<c012e119>] [<c012e50c>]
[<c012e8d0>]
[<c012ea18>] [<c012e8d0>] [<c013be03>] [<c010740f>]

Code: 0f 0b 51 00 3d 55 2e c0 ff 05 64 a2 32 c0 5b c3 89 f6 83 ec


If you need any further information about the setup please let me know. If
there are any patches you'd like me to test just drop me a line.
I'm not subscribed to lkm so please cc me on your replies.

Bye,
--
Tom Winkler
e-mail: tom@qwws.net
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