Weird problem

Alexander Sanda (alex@darkstar.ping.at)
8 Jul 1996 19:30:20 GMT


Well, it's really weird, but it exists and I can reproduce it.

Situation:

I tried to mount a HPFS partiton with mount -thpfs /dev/sda8 /mnt
Unfortunately, I made a typo, sda8 is not hpfs, it's ext2 (sda9 is the
HPFS). Allright, mount told me about the error, and I corrected it.
The partition got mounted, as I expected.

After a while, I noticed a increasing load (have xload running),
uptime showed me a load average about 2.0. I did a ps and saw, that
sendmail got stuck, while it was running the queue (it does it every
15 minutes).

A line such as: /usr/lib/sendmail: running queue ...

appeared in the ps output. The funny thing is, that I can't kill this
stuck sendmail process. It just sits there and eats cpu load as hell,
(after a while the loadavg increased to 4.0).

I have no clue, what sendmail has to do with filesystem code, but I'am
not a kernel hacker, so I don't want to say any nonsense here :-)

Here is, what the kernel wrote to the log:

darkstar kernel: HPFS: hpfs_read_super: Not HPFS
darkstar kernel: HPFS: bplus_lookup: sector not found
darkstar last message repeated 4 times
darkstar kernel: ll_rw_block: device 08:08: only 512-char blocks implemented (4096)
darkstar kernel: ll_rw_block: device 08:08: only 512-char blocks implemented (4096)
darkstar kernel: ll_rw_block: device 08:08: only 512-char blocks implemented (4096)

I can reproduce this behaviour both on 2.0.3 and 2.0.4.
System is a P133/Triton/64megs/NCR (with the new driver, but it
happens with the "original" driver aswell), IBM DPES-31080.
kernel compiled with networking support, almost all as modules (also
hpfs)

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