On 15/07/2016 12:12, Gerd Hoffmann wrote: > On Fr, 2016-07-15 at 12:02 +0200, Paolo Bonzini wrote: >> >> On 15/07/2016 10:47, Juergen Gross wrote: >>> Nothing scaring and no real difference between working and not working >>> variant. >>> >>> Meanwhile I've been digging a little bit deeper and found the reason: >>> libxenstore is setting up a reader thread which is waiting for the >>> watch to fire. With above commit the stack size of that thread (16kB) >>> is too small. Setting it to 32kB made qemu work again. >> >> This makes very little sense (not your fault)... The commit doesn't >> change stack usage at all, TLS should not be on the stack. >> >> Can you capture a backtrace where the 16K stack is exceeded? Perhaps >> it's only due to inlining decision on the compiler, in which case >> Peter's patch from today is only a bandaid. > > Hmm, I guess I hold off the vnc pull request for now ...
Go ahead. I looked at glibc source code and the patch is okay. Paolo
