"Brian F. Feldman" wrote:
> > -----------------------------------------------
> > Jun 25 18:06:30 calvin kernel: /usr/src/sys/vm/uma_core.c:1331: could
> > sleep with "process lock" locked from /usr/src/sys/kern/kern_exec.c:321
> > Jun 25 18:21:19 calvin syslogd: kernel boot file is /boot/kernel/kernel
> > Jun 25 18:21:19 calvin kernel: Memory modified after free 0xc2cb9800(252)
> > Jun 25 18:21:19 calvin kernel: panic: Most recently used by kqueue
> I've actually seen this, too; not been able to track it down at all, though.
> At the moment, I've checked everywhere obviously M_KQUEUE memory is alloced
> and dealloced and have no good leads.

If you care a lot, then you need to search the kernel for
structures that are exactly 252 bytes.

The normal cause of this message is a reference cound underflow,
which could be because of a reference count overflow (I had a
similar case with cred's a whilke back).

-- Terry

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