The following reply was made to PR kern/186362; it has been noted by GNATS.
From: Eugene Grosbein <[email protected]> To: Andriy Gapon <[email protected]> Cc: [email protected] Subject: Re: kern/186362: [panic] _mtx_lock_sleep() misses check for NULL Date: Sun, 02 Feb 2014 20:54:24 +0700 On 02.02.2014 19:55, Andriy Gapon wrote: > > NULL check would be redundant there as it is already established that the > lock > is owned and thus must have an owner. > What seems to be happening that is that the thread is trying to acquire a > lock > that has been corrupted somehow. E.g. never initialized or its memory > location > overwritten. > > Better diagnostics for that case when INVARIANTS are enabled is warranted > though. > > Returning to the main issue, I wonder if the following message are related to > the problem: > > module_register: module mac_portacl already exists! > Module mac_portacl failed to register: 17 > > I seem to recall that in some cases our kernel module loading infrastructure > may > refuse to load a duplicate module, bu nevertheless re-resolve a symbol name > to > point to a symbol in the duplicate module rather than in the original. > Which is > a bug, of course. I've disabled loading of mac_portacl in loader.conf keeping options MAC_PORTACL in my kernel and panic is no more. Do you still need additional INVARIANTS-enabled debug info? Eugene Grosbein _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
