> > I tried to recreate your problem using 2.6.23-1 and latest rt patch (rt5). > > The problem is that the kernel is not stable at all, I can't even > > compile the code over vnc - > > my connection is constantly lost. So it might not be kvm problem? > > Can you try is with -no-kvm and see if it's working - then its just a > > regular userspace process. > > Anyway if all other things are stable on your end, can you send us > > dmesg/strace outputs? > Thanks, Dor, for offering help. > > The most recent RT-Preempt patch (2.6.23.1-rt5) still has an SMP issue > which need to be sorted out first. > > When a working RT-Preempt patch is available, I will be glad to send > dmesg outputs. We may then share our activities to create the next > "Latest stable" RT-Preempt kernel that includes kvm support.
Wow, that smp issue may be a problem I've got a Intel Core 2 cpu with just 2 cores. but I've not seen a dump like this in a while (lustre?). I've updated to 2.6.23-rt5 and kvm-50 and I got this dump.... [ 254.639143] audit(1194322621.379:3): dev=tap0 prom=256 old_prom=0 auid=429496 7295 [ 254.647231] br0: port 2(tap0) entering learning state [ 255.988741] IRQ-23[942]: segfault at 0000000000000000 rip 00002ac.994386] Cal l Trace: <4>[ 255.994387] <3>[ 255.998090] BUG: scheduling while atomic: swapper/0x0 2 56.002986] Call Trace: [ 256.002986] [ 256.00ad! <4>[ 256.007635] <4>[ 256.007635] Call Trace:G: scheduling while atomic: swapper/0x00000003/0, C PU#all Trace: [ 256.016955] [ 256.016956] bad: sched1615] <4>[ 256.021615] Call Trace: [ 256.021616]e atomic: swapper/0x00000003/0, CPU#1 [ 256.026276] .030935] [ 256.030936] bad: scheduling from the idl35595] Call Trace: [ 256.035595] [ 256.035596] B0000003/0, CPU#1 <4>[ 256.040256] This loops forever basically... I'm really confused about this one. I've got the full minicom.cap file from the session that produced this its attached zipped up. If you'd like any other information I'd be glad to post it. - David Brown
minicom.cap.gz
Description: GNU Zip compressed data
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