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Re: panic: "pb->pb_pathcopyuses == 0" failed (sys_rename)
On Thu, Dec 27, 2012 at 02:42:17PM +0100, Frank Kardel wrote:
> When booting a 20121225 kernel running a 6.99.5 userland
> I get
> panic: kernel diagnostic assertion "pb->pb_pathcopyuses == 0"
> failed: file "/usr/src/sys/kern/vfs_lookup.c", line 279
> cpu0: Begin traceback...
> kern_assert() at netbsd:kern_assert+0x48
> pathbuf_destroy() at netbsd:pathbuf_destroy+0x6c
> do_sys_renameat() at netbsd:do_sys_renameat+0x82
> sys_rename() at netbsd:sys_rename+0x25
> syscall() at netbsd:syscall+0x94
> --- syscall (number 128) ---
> cpu0: End traceback...
> when logging in kde.
> Any clues?
My first guess would be that the openat changes introduced a refcount
leak, but it could also just be a broken error path that hasn't been
Are you in a position to get a ktrace covering the offending syscall?
(You can change the assertion to a printf so it doesn't crash; the
worst it's likely to do is leak memory.)
David A. Holland
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