cvs commit: src/sys/kern vfs_bio.c
peadar.edwards at gmail.com
Thu Sep 29 06:49:10 PDT 2005
On 9/29/05, Pawel Jakub Dawidek <pjd at freebsd.org> wrote:
> On Thu, Sep 29, 2005 at 10:37:20AM +0000, Peter Edwards wrote:
> +> peadar 2005-09-29 10:37:20 UTC
> +> FreeBSD src repository
> +> Modified files:
> +> sys/kern vfs_bio.c
> +> Log:
> +> Close a race in biodone(), whereby the bio_done field of the passed
> +> bio may have been freed and reassigned by the wakeup before being
> +> tested after releasing the bdonelock.
> +> There's a non-zero chance this is the cause of a few of the crashes
> +> knocking around with biodone() sitting in the stack backtrace.
> Should this fix the panic on boot in vmware?
That one falls under the "non-zero chance" mentioned above :-) The
problem was very intermittent for me, and wanting the laptop not to
fall over seemed to be a prerequisite to reproducing the panic, so I
can't positively say it's fixed the problem yet.
If you have a reliable way of reproducing the panic, can you try out
the patch and let me know?
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