Date: Tue, 05 Jan 2010 23:47:34 +0100 From: martinko <gamato@users.sf.net> To: freebsd-stable@freebsd.org Subject: Re: 8.0 regression: consecutive panics (iwi / wlan / zfs ?) Message-ID: <hi0fi5$253$1@ger.gmane.org> In-Reply-To: <20100104155041.GA73184@icarus.home.lan> References: <hht15s$9up$1@ger.gmane.org> <20100104155041.GA73184@icarus.home.lan>
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Jeremy Chadwick wrote: > On Mon, Jan 04, 2010 at 04:13:36PM +0100, martinko wrote: >> A few hours ago I experienced 3 consecutive panics on this freshly >> installed 8.0, the last panic just 28s into boot sequence. It seems >> to me that culprit could be iwi/wlan possibly with help from zfs or >> others. >> More details even with screen-shot of the last panic follow. >> >> I have used versions 5.3 to 6.4 on this laptop, the last one being >> the most stable and smooth. A few weeks ago I moved to 8.0 (fresh >> install) and since then I've been experiencing funny issues. >> >> Last night I was writing an email when I noticed my wi-fi link was >> gone. I checked /var/log/messages and saw the following: >> >> wlan0: link state changed to DOWN >> wlan0: link state changed to UP >> wlan0: link state changed to DOWN >> wlan0: link state changed to UP >> wlan0: link state changed to DOWN >> wlan0: link state changed to UP >> linux: pid 6189 (skype): syscall inotify_init not implemented >> ZFS NOTICE: Prefetch is disabled by default on i386 -- to enable, >> add "vfs.zfs.prefetch_disable=0" to /boot/loader.conf. >> ZFS WARNING: Recommended minimum kmem_size is 512MB; expect unstable >> behavior. >> Consider tuning vm.kmem_size and vm.kmem_size_max >> in /boot/loader.conf. >> ZFS filesystem version 13 >> ZFS storage pool version 13 >> >> While wifi weirdness did not impressed me, I was perplexed by ZFS >> messages. I checked kldstat and indeed ZFS was loaded. Note that I >> have not attached any ZFS storage devices nor I have ever configured >> ZFS on this laptop. And before I could investigate any further my >> laptop froze and then rebooted. > > The ZFS messages in question get printed when ZFS initialises (in your > case, when the kernel module was loaded). How or why it got loaded is > beyond me. > > In this case would help to post these kinds of kernel messages taken > directly from /var/log/messages instead of from dmesg -- the file in > question is handled by syslog and will have timestamps. > > I can't help with the rest of the problems mentioned, sorry. :-( > There's nothing else in log regarding ZFS. It sure was loaded as I checked with kldstat. But I have not loaded it nor I have ever had any device with ZFS on it near this laptop. Really strange. This appeared in log shortly before a crash: Jan 4 04:42:24 mb-aw1n-bsd kernel: wlan0: ieee80211_new_state_locked: pending SCAN -> AUTH transition lost Jan 4 04:42:24 mb-aw1n-bsd kernel: wlan0: link state changed to UP Jan 4 04:42:24 mb-aw1n-bsd kernel: iwi0: firmware error And then again on subsequent boot. Wi-fi did not work and system panicked again. Then panicked already during boot. A then I switched it off which obviously helped (to restore HW to its defaults?). Hm.. M.
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