retitle 685353 "kvm process hangs with 100% CPU usage when using sound emulation" severity 685353 normal thanks
Hi Michael, * Michael Tokarev schrieb: > On 30.08.2012 22:03, malc wrote: > > On Thu, 30 Aug 2012, Mike Gerber wrote: > [] > >> Vassily: Anything else you need when the hang happens again? Unfortunately > >> I'll > >> have to go into production with the guest, and I can't spend more weeks > >> with > >> this bug after this week end. > > > > Audio compiled without optimzations which should give meaningful > > backtrace and contents of local variables. > Mike, are you able to do that? You can grab either the upstream qemu-kvm > sources or debian sources, remove all -Oxx references or adding -O0, and > recompile (`apt-get build-dep qemu-kvm' will install all necessary deps). I had to 1. Replace CFLAGS 2. Call configure with "--enable-debug" in debian/rules of the package to get rid of all "-O2"s. (Not sure what happens when you have both -O0 and -O2.) A test (full) backtrace didn't contain any "<optimized out>" values anymore, so I think this is OK. > Or I can compile it for you if you prefer. Not necessary, but maybe you could consider adding a debug switch in debian/ rules to have the package built without optimizations. I'm somewhat familiar with customizing Debian packages, others maybe not. > >> Michael: I noticed that this bug (#685353) is RC, so please rate it down if > >> you think it is appropiate. I doubt that many people will hit it. > > It was you who marked this bug as "grave", right? :) Yes, before I knew it was connected to excessive use of the sound emulation and weird sample rates :) > Yes it does not look like something many people will hit. > Are you okay with downgrading it to "normal" or "important" ? Yes, this email should do it. Thanks, Mike -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
