Re: Busy-wait delay in qmail 1.03 after upgrading to Linux 2.6

From: Haakon Riiser
Date: Wed Jan 14 2004 - 06:30:10 EST


I have some more info on this bug:

Apparently, lock/trigger is a named pipe that connects to
qmail-send. I immediately tried stracing qmail-send while sending
the test message, but unfortunately, the bug is not reproducible
while qmail-send is straced. The entire process is almost as
fast as it is under 2.4 when I strace qmail-send.

At least now we have a temporary workaround:

strace -p $(pidof qmail-send) -o /dev/null &

:-)

Btw, the output from strace -p $(pidof qmail-send) can be viewed here:
(probably not interesting though, since the bug is not reproduced
under strace)

http://home.chello.no/~hakonrk/qmail-send.st.out.gz

--
Haakon
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/