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Chris Webb <chris at arachsys.com> wrote: > My CPU flags inside the crashing guest look like this: > > fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush > mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb lm rep_good nopl > extd_apicid pni pclmulqdq ssse3 fma cx16 sse4_1 s...

Chris Webb <chris at arachsys.com> wrote: > My CPU flags inside the crashing guest look like this: > > fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush > mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb lm rep_good nopl > extd_apicid pni pclmulqdq ssse3 fma cx16 sse4_1 s...

Running a 3.14.4 x86-64 SMP guest kernel on qemu-2.0, with kvm enabled and -cpu host on a 3.14.4 AMD Opteron host, I'm seeing a reliable kernel panic from the guest shortly after boot. I think is happening in kvm_unlock_kick() in the paravirt_ops code: divide error: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.14.4-guest #16 Hardware name: QEMU

Running a 3.14.4 x86-64 SMP guest kernel on qemu-2.0, with kvm enabled and -cpu host on a 3.14.4 AMD Opteron host, I'm seeing a reliable kernel panic from the guest shortly after boot. I think is happening in kvm_unlock_kick() in the paravirt_ops code: divide error: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.14.4-guest #16 Hardware name: QEMU

...n practice is quite subtle and easy to miss. ssh is always run with -4 which works fine except when there is only v6 connectivity between a pair of hosts, whereupon ssh between them works but rsync unexpectedly fails with 'Name has no usable address'. Signed-off-by: Chris Webb <chris at arachsys.com> --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index ccad7f13..9a766c94 100644 --- a/configure.ac +++ b/configure.ac @@ -392,7 +392,7 @@ AS_HELP_STRING([--disable-ipv6],[disable to omit ipv6 support]), #include <stdlib.h...

Il 29/05/2014 19:45, Chris Webb ha scritto: > Chris Webb <chris at arachsys.com> wrote: > >> My CPU flags inside the crashing guest look like this: >> >> fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush >> mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb lm rep_good nopl >> extd_apicid pni pclmulqdq...

...on of things like the ssl-parameters.dat file and the replicator database. Replace all these uses of PKG_STATEDIR with a state_dir setting which defaults to PKG_STATEDIR but can be overridden in dovecot.conf, in the same way base_dir can be used to override PKG_RUNDIR. Signed-off-by: <chris at arachsys.com> --- src/config/Makefile.am | 1 - src/doveadm/doveadm-instance.c | 10 ++++------ src/doveadm/doveadm-mount.c | 3 +-- src/doveadm/doveadm-settings.c | 2 -- src/doveadm/doveadm-settings.h...

Paolo Bonzini <pbonzini at redhat.com> wrote: > Il 29/05/2014 19:45, Chris Webb ha scritto: >> Chris Webb <chris at arachsys.com> wrote: >> >>> My CPU flags inside the crashing guest look like this: >>> >>> fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush >>> mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb lm rep_good nopl >>>...

Paolo Bonzini <pbonzini at redhat.com> wrote: > Il 29/05/2014 19:45, Chris Webb ha scritto: >> Chris Webb <chris at arachsys.com> wrote: >> >>> My CPU flags inside the crashing guest look like this: >>> >>> fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush >>> mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb lm rep_good nopl >>>...

I realised my original bug report was for a guest kernel compiled without frame pointers which might be unhelpful, so I enabled CONFIG_DEBUG_INFO and CONFIG_FRAME_POINTER, but I don't think this has made the backtrace any more detailed. Is there anything more I can do to pinpoint what might be going on here? Cheers, Chris. divide error: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 1