Robert Mustacchi via smartos-discuss wrote:
On 3/7/15 11:10 , Ian Collins via smartos-discuss wrote:Robert Mustacchi via smartos-discuss wrote:On 3/7/15 1:22 , Ian Collins via smartos-discuss wrote:This afternoon I upgraded my test box and ran the test again. This caused the Ubuntu KVM to lock up completely (hogging 100% of a core). Not a good result.The VM is still locked up if anyone want's me to investigate why. A cursory glance with truss shows cycles similar to: /3: ioctl(16, _ION(0xae, 128, 0), 0x00000000) = 0 /3: ioctl(16, _ION(0xae, 128, 0), 0x00000000) = 0 /11: Received signal #14, SIGALRM, in sigtimedwait() [caught] /11: siginfo: SIGALRM pid=11606 uid=0 code=-3 /11: sigtimedwait(0x2010673D0, 0xFFFFFD7FFD7C3C60, 0x00000000) = SIGALRM /11: write(26, "0E\0\0\0\0\0\0\0\0\0\0\0".., 128) = 128 /1: pollsys(0xFFFFFD7FFFDF9150, 9, 0xFFFFFD7FFFDF9330, 0x00000000) = 1 /1: read(25, "0E\0\0\0\0\0\0\0\0\0\0\0".., 128) = 128 /1: sigaction(SIGALRM, 0x00000000, 0xFFFFFD7FFFDF92A0) = 0 /1: write(9, "01\0\0\0\0\0\0\0", 8) = 8 /1: read(25, 0xFFFFFD7FFFDF92C0, 128) Err#11 EAGAIN /1: pollsys(0xFFFFFD7FFFDF9150, 9, 0xFFFFFD7FFFDF9330, 0x00000000) = 1 /1: read(8, "01\0\0\0\0\0\0\0", 512) = 8Most of the KVM threads that we care about are in the kernel. What does mdb -ke '0t<qemu pid>::pid2proc | ::walk thread | ::findstack -v' show?Hmm, so there are threads that are actively running inside the VM. What does kvmstat show here?
# kvmstat 30pid vcpu | exits : haltx irqx irqwx iox mmiox | irqs emul eptv
11445 0 | 51 : 7 1 1 9 1 | 8 31 0 11445 1 | 50 : 6 1 0 8 1 | 7 33 0 11583 0 | 5 : 1 0 0 0 0 | 1 4 0 11583 1 | 8 : 1 0 0 0 0 | 1 6 0 11583 2 | 5 : 1 0 0 0 0 | 1 4 0 11583 3 | 6 : 1 0 0 0 0 | 1 4 0 11583 4 | 5 : 1 0 0 0 0 | 1 4 0 11583 5 | 12 : 2 0 0 0 0 | 2 10 0 11583 6 | 6 : 1 0 0 0 0 | 1 4 0 11583 7 | 7 : 1 0 0 0 0 | 1 5 0 11606 0 | 143 : 0 123 0 20 0 | 0 0 0 11606 1 | 0 : 0 0 0 0 0 | 0 0 0 11606 2 | 0 : 0 0 0 0 0 | 0 0 0 11606 3 | 0 : 0 0 0 0 0 | 0 0 0 11606 4 | 0 : 0 0 0 0 0 | 0 0 0 11606 5 | 0 : 0 0 0 0 0 | 0 0 0 11606 6 | 0 : 0 0 0 0 0 | 0 0 0 11606 7 | 0 : 0 0 0 0 0 | 0 0 0 11606 is the stuck guest. -- Ian. ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
