On 13-11-20 07:34 AM, Jan Kiszka wrote: > On 2013-11-20 13:26, Frederich, Jens wrote: >> Hello, >> >> I got a Kernel panic by some long time stress tests. Look here: http://dy.cx/pqP7M. > > Ah, that should be http://thread.gmane.org/gmane.linux.kernel/1564783 > > Paul, was there any follow-up patch on this topic? Yeah, from the rt-summit [ http://lwn.net/Articles/572740/ ] it is on me to get those simple wait queue patches mainlined (and then the local_bh stuff). Once I've got that done, I'll look at spending some time on 3.12-rt kvm patches -- in the meantime, you are right, the screenshot shows that his 3.10-rt needs the straightforward conversion of vpcu->wq to simple wait. Paul. -- > > Jan > >> >> Furthermore I got sporadic some BUG messages: >> >> [ 1128.358971] BUG: scheduling while atomic: swapper/0/0/0x00010002 >> [ 1128.358982] Preemption disabled at:[<ffffffff810dfb8a>] cpu_startup_entry+0x17a/0x300 >> >> Hardware >> -------- >> >> My system is a i7 with 4 GB RAM congatec evalboard. >> >> Setup >> ----- >> >> On the system runs Linux RT (text mode) 3.10.10-rt7 with 1 GB RAM and a >> Windows 7 KVM/QEMU (Qemu 1.6.1) guest with 3 GB RAM. Each system has it own >> ethernet card. The Win 7 guest uses it per pci pass-through. The Win 7 is >> pinned to core 2,3. >> >> Scenario >> -------- >> >> We sending UDP packages every 1 msec on the Linux side. The UDP sender process >> has real time prio 80 and the ethernet driver 90. At the same time we are >> stressing Win 7. Memory stress - allocate as much as possible and do memset(), >> then CPU stress - high CPU load, then Kernel DPC stress - high load thread at >> DPC level and ethernet stress - send UDP packages every milliseconds. I got the >> panic after 45 minutes. It seems that is correlates with the ethernet stress. >> >> Can anybody help me? >> >> thanks >> Jens > -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
