Yang, Sheng wrote: >> One new issue: >> 1. qcow based smp linux guests likely hang >> https://sourceforge.net/tracker/index.php?func=detail&aid=1901980&group_ >> id=180599&atid=893831 >> We found the issue while booting qcow based rhel5.1 smp guest. It likely >> hangs at the first booting. If using raw disk image, the problem will >> not happen. >> >> > > This issue(i8254 don't connected to ioapic) happened from time to time on > when > I debug IOAPIC and PIT related things. I think it caused by guest kernel > can't receive PIT interrupt in time. And I have done a experiment with in > kernel PIT patch, and it works well to fix this issue. > > I guess this may due to qcow need some more time, and the accumulate time > causing PIT interrupt delayed? >
I think time calibration happens before any disk access by the kernel. -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
