DragonFly bugs List (threaded) for 2007-02
Re: panic: getblk: vnode 0xce889690 has no object!
:> Could you upload the coredump to leaf?
:> This panic occurs when a vnode has no associated VM object. VM objects
:> used to be optional but are now mandatory, so there must have been a
:> path where the vnode was created without a VM object (possibly before
:> the ls). Examining the vnode might give me a clue as to how that
:Done, saved as ~y0netan1/crash/panic-11.tar.gz . The source code
:is as of just before my last commit to /sys/dev/acpica5/acpi.c (rev 1.30).
Hmm. Something very odd is going on here. It is trying to resolve
the filename "firefox-220.127.116.11" at this path:
print ap->a_nch->ncp->nc_name ("firefox-18.104.22.168")
print ap->a_nch->ncp->nc_parent->nc_name ("firefox")
print *ap->a_nch->mount ("/u")
So the path is:
The problem is that /u/firefox seems to be a softlink. At least,
the vnode is marked as being a softlink and that makes the
namecache entry illegal because it must be a directory (the namecache
represents the 'real' path, not paths through softlinks).
The kernel then treats the vnode as a directory even though it is
a VLNK, tries to do a block lookup on it, and panics.