https://bugzilla.novell.com/show_bug.cgi?id=662083 https://bugzilla.novell.com/show_bug.cgi?id=662083#c0 Summary: process accounting kind of broken on kernel-xen 2.6.34.x dom0 Classification: openSUSE Product: openSUSE 11.3 Version: Final Platform: x86-64 OS/Version: openSUSE 11.3 Status: NEW Severity: Normal Priority: P5 - None Component: Xen AssignedTo: jdouglas@novell.com ReportedBy: samuel.kvasnica@ims.co.at QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 After having quite hard times with the soft-lockup nightmare on 2.6.31.x kernels with xen I'm happy to say that the 2.6.34 seem to be soft-lockup free by now (Yes, it got better on nehalem by the patch, but something is still broken there, just not so frequent...). But there are other 'cosmetic' glitches related to clock which were not present in 2.6.31: In particular the load average shown in dom0 is broken, it gets a stable positive integer offset (typically something like 3.0 or 5.0 on my systems). I could reproduce this on 2 different 4-core/HT nehalem systems as well as an old 2-core pentiumD system. It seems like dom0 kernel gets initialized with all cpus on boot but the data structures do not get correctly reinitialized when the number of cpus reduces after xend started ? While this is basically a cosmetic issue, it makes the host monitoring a hell. Further, the clock in domUs drifts now, while it was stable in 2.6.31, I'm submitting a separate bug for that. Reproducible: Always Steps to Reproduce: 1.configure Xen dom0 with some domU 2.set dom0-cpus to >0 but lower value that ncpu 3.start xend 4.look at top Actual Results: top - 17:59:26 up 22:52, 3 users, load average: 5.00, 5.00, 5.00 Tasks: 172 total, 1 running, 169 sleeping, 0 stopped, 2 zombie Cpu0 : 2.3%us, 1.2%sy, 0.0%ni, 96.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.3%st Cpu1 : 2.6%us, 1.2%sy, 0.0%ni, 96.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 1026560k total, 597420k used, 429140k free, 12k buffers Swap: 8385924k total, 14676k used, 8371248k free, 267036k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5913 root 20 0 8588 1156 576 S 1 0.1 3:22.53 xenstored 5922 root 20 0 294m 34m 2116 S 1 3.4 4:17.65 xend 5816 root 20 0 0 0 0 S 0 0.0 2:13.16 netback/0 25286 root 20 0 8668 1148 788 R 0 0.1 0:00.19 top 28712 root 35 15 77504 5428 1856 S 0 0.5 2:15.57 snmpd 1 root 20 0 12408 636 596 S 0 0.1 0:00.93 init 2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd 3 root RT 0 0 0 0 S 0 0.0 0:00.30 migration/0 4 root 20 0 0 0 0 S 0 0.0 0:00.96 ksoftirqd/0 5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0 Expected Results: .. would expect load average of 0.00 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.