1.3.91 - Kernel stack overflow

Robert de Bath (robert@mayday.compulink.co.uk)
Sat, 20 Apr 1996 11:21:23 +0100 (BST)


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---1715277560-763308467-829995702=:3720
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Dear Linus & *

I vaguely remember seeing something about this flying past a few versions
back, as I haven't seen it recently I thought I'd better stand up.

"Apr 18 22:49:38 mayday kernel: release: as kernel stack corruption. Aiee"
"Apr 19 23:04:22 mayday kernel: release: as kernel stack corruption. Aiee"

I did have a buffer cache corruption once but as it hasn't repeated I can't
really say much more (probably just bad luck).

This is very rare, but it does seem to happen once or twice within a full
kernel re-compile. As for where it's happening, well the best I can say
is to give you the '.config' file (Mime attached) and a couple of notes
about the setup.

1) This kernel is running with a umsdos root (The panic/devl partition)
2) /usr is a symlink to the normal root filesystem (ext2)
3) All disks are SCSI (the primary is a 4Gb) on an aha1542B.
4) The kernel (both compiled and compiling) is a stock 1.3.91
5) GCC 2.7.0 -fno-strength-reduce

I then tried the make -j script ... Oh Wow! :-)
Boy was I glad that I'd left the big partition RO!

Apr 20 11:46:10 mayday kernel: release: cpp kernel stack corruption. Aiee
Apr 20 11:46:10 mayday kernel: release: cpp kernel stack corruption. Aiee
Apr 20 11:46:12 mayday kernel: end_request: I/O error, dev 01:01, sector 5760
Apr 20 11:46:12 mayday kernel: end_request: I/O error, dev 01:01, sector 5762
...
Apr 20 11:46:12 mayday kernel: end_request: I/O error, dev 01:01, sector 5852
Apr 20 11:46:12 mayday kernel: end_request: I/O error, dev 01:01, sector 5854
Apr 20 11:46:12 mayday kernel: end_request: I/O error, dev 01:01, sector 5856
Apr 20 11:46:12 mayday kernel: end_request: I/O error, dev 01:01, sector 5858
...

cpp also gave some 'memory exhausted' messages ...

--
Rob.                           (Robert de Bath <robert@mayday.compulink.co.uk>)

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