Date: Wed, 17 Jun 2015 16:54:14 +0930 From: Shane Ambler <FreeBSD@ShaneWare.Biz> To: Andriy Gapon <avg@FreeBSD.org>, Hans Petter Selasky <hps@selasky.org>, freebsd-stable@FreeBSD.org Subject: Re: Help debugging stable/10 Message-ID: <5581209E.1070905@ShaneWare.Biz> In-Reply-To: <55103050.6030904@ShaneWare.Biz> References: <5488F58D.7060708@ShaneWare.Biz> <201412161129.57704.jhb@freebsd.org> <549BC924.3050402@ShaneWare.Biz> <549BD90B.2050000@selasky.org> <549C042D.3090108@FreeBSD.org> <55103050.6030904@ShaneWare.Biz>
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On 24/03/2015 01:55, Shane Ambler wrote: > On 25/12/2014 23:03, Andriy Gapon wrote: >> On 25/12/2014 11:29, Hans Petter Selasky wrote: >>> The cam_sim_free() is stuck, blocking the rest of that controller from >>> enumerating. It might look like a non-USB stack issue. >>> >>> MAV: Do you have some ideas where to start looking, now we have a >>> dump? Any >>> refcounts to check in particular? >> >> Apparently sim->refcount > 0. >> Not sure how to check who has the reference(s). >> Can anyone think of something I can try? To recap to save you going back through history - After running 9.0 - 9.2 for 3 years I upgraded to 10.1RC3 and started getting a locking issue, most new processes fail to start, top and ps failing being indicators, the most info I have got is a back trace using kgdb, there are 4 instances I got output from procstat -kk -a On several occasions I have found that after inserting a usb memstick the device failed to be created, leaving me unable to mount the filesystem without a restart. I then switched to stable/10 in hopes of a fix finding it's way in. The back traces I have been able to collect (and a dmesg) are listed at http://shaneware.biz/freebsddebugdata/ This is my everyday desktop machine. I am now running FreeBSD leader.local 10.1-STABLE FreeBSD 10.1-STABLE #11 r283839: Thu Jun 4 17:41:28 ACST 2015 root@leader.local:/usr/obj/usr/src/sys /GENERIC amd64 I can only say it appears to be getting worse, though I may just be getting sick of having to restart nearly every day. Lately it seems that the less I do the quicker it locks up. I have restarted twice this week and then let it sit while I have gone out, after returning I get maybe 10-15 mins then have to restart, one of them was less than an hour uptime. While running poudriere I have got past 1 day uptime but it locks up harder and I don't usually get a chance to record any data. -- FreeBSD - the place to B...Software Developing Shane Ambler
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