[3.13-rc/78] random SIGBUS errors + 3.14-rc0 - KVM/QEMU - CPU hang issues

[3.13-rc/78] random SIGBUS errors + 3.14-rc0 - KVM/QEMU - CPU hang issues

[Shawn Starr]

Hello folks,

After a couple days of uptime, with Google Chrome + Flash. This has happened twice, will crash with a SIGBUS and subsequent launches of Google Chrome will SIGBUS. In addition other programs may or may not SIGBUS but the whole system becomes unstable until a full reboot. I only see kaudit logs from kernel but nothing looks unusual and there are no other noticed messages indicating anything wrong.

Anyone else noticed SIGBUS issues w/ 3.13-rcX (-rc8 or final?)

For 3.14-rc0 in Fedora (rawhide non-debug repo), spinning up a VM w/ KVM causes kernel to report CPU hang by 'qemu' process, it's early in the 3.14 cycle so I expect things to be wild a bit but wanted to report that if anyone else hasn't noticed yet.

Thanks,

Shawn Starr
Sr. Linux Administrator 
StatPro | Toronto
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