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Re: [Xen-devel] [linux-next test] 36692: regressions - FAIL



On 03/25/2015 05:16 AM, Ian Campbell wrote:
On Wed, 2015-03-25 at 04:54 +0000, xen.org wrote:
flight 36692 linux-next real [real]
http://www.chiark.greenend.org.uk/~xensrcts/logs/36692/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
  test-amd64-i386-xl            5 xen-boot                  fail REGR. vs. 36569
  test-amd64-i386-xl-win7-amd64  5 xen-boot                 fail REGR. vs. 36569
  test-amd64-i386-xl-qemut-debianhvm-amd64  5 xen-boot      fail REGR. vs. 36569
  test-amd64-i386-xl-qemut-win7-amd64  5 xen-boot           fail REGR. vs. 36569
  test-amd64-i386-freebsd10-amd64  5 xen-boot               fail REGR. vs. 36569
  test-amd64-i386-xl-qemut-winxpsp3-vcpus1  5 xen-boot      fail REGR. vs. 36569
  test-amd64-i386-xl-qemuu-win7-amd64  5 xen-boot           fail REGR. vs. 36569
  test-amd64-i386-qemut-rhel6hvm-intel  5 xen-boot          fail REGR. vs. 36569
  test-amd64-i386-xl-qemuu-debianhvm-amd64  5 xen-boot      fail REGR. vs. 36569
  test-amd64-i386-xl-qemut-winxpsp3  5 xen-boot             fail REGR. vs. 36569
  test-amd64-i386-qemuu-rhel6hvm-intel  5 xen-boot          fail REGR. vs. 36569
  test-amd64-i386-xl-winxpsp3   5 xen-boot                  fail REGR. vs. 36569
  test-amd64-i386-qemuu-rhel6hvm-amd  5 xen-boot            fail REGR. vs. 36569
  test-amd64-i386-xl-qemuu-ovmf-amd64  5 xen-boot           fail REGR. vs. 36569
  test-amd64-i386-rhel6hvm-amd  5 xen-boot                  fail REGR. vs. 36569
  test-amd64-i386-xl-qemuu-winxpsp3  5 xen-boot             fail REGR. vs. 36569
  test-amd64-i386-rumpuserxen-i386  5 xen-boot              fail REGR. vs. 36569
  test-amd64-i386-xl-winxpsp3-vcpus1  5 xen-boot            fail REGR. vs. 36569
  test-amd64-i386-rhel6hvm-intel  5 xen-boot                fail REGR. vs. 36569
  test-amd64-i386-freebsd10-i386  5 xen-boot                fail REGR. vs. 36569
  test-amd64-i386-qemut-rhel6hvm-amd  5 xen-boot            fail REGR. vs. 36569
  test-amd64-i386-pair          8 xen-boot/dst_host         fail REGR. vs. 36569
  test-amd64-i386-pair          7 xen-boot/src_host         fail REGR. vs. 36569
Looks like there is a regression for 32-bit dom0?


Yes, I was able to reproduce it (we typically don't test linux-next here which is why I didn't see it).

64-bit looks OK though, I don't see problems that you reported in the other message.

-boris



The three logs I looked at stopped after:
Mar 24 14:28:10.658757 [    5.705317] random: nonblocking pool is initialized

One of them had something more interesting though,right after the
non-blocking pool
http://www.chiark.greenend.org.uk/~xensrcts/logs/36692/test-amd64-i386-rhel6hvm-amd/serial-lace-bug.log:

Mar 24 15:57:13.494608 [   24.445372] INFO: rcu_sched detected stalls on 
CPUs/tasks:
Mar 24 15:57:32.510635 [   24.445389]   (detected by 0, t=21002 jiffies, 
g=-282, c=-283, q=36)
Mar 24 15:57:32.522591 [   24.445397] All QSes seen, last rcu_sched kthread 
activity 21002 (-278938--299940), jiffies_till_next_fqs=3, root ->qsmask 0x0
Mar 24 15:57:32.530599 [   24.445405] migration/0     R running      0     9    
  2 0x00000000
Mar 24 15:57:32.530635 [   24.445411]  db4bb000 db4bb000 db4e1cb4 c10cbac4 
c188e078 00000000 00000009 00000002
Mar 24 15:57:32.542606 [   24.445422]  00000000 c19649c0 c19649c0 db4e1d00 
c10f5bdf c18890d4 c1964c40 0000520a
Mar 24 15:57:32.550610 [   24.445433]  fffbbe66 fffb6c5c 00000003 00000000 
c19600c0 c19649c0 00000024 00000000
Mar 24 15:57:32.562630 [   24.445444] Call Trace:
Mar 24 15:57:32.562665 [   24.445451]  [<c10cbac4>] sched_show_task+0xb4/0x130
Mar 24 15:57:32.570629 [   24.445457]  [<c10f5bdf>] 
rcu_check_callbacks+0x63f/0x650
Mar 24 15:57:32.570675 [   24.445463]  [<c10fa26a>] 
update_process_times+0x2a/0x60
Mar 24 15:57:32.582594 [   24.445469]  [<c11084f5>] tick_periodic+0x25/0x90
Mar 24 15:57:32.582630 [   24.445510]  [<c11086ef>] 
tick_handle_periodic+0x1f/0x70
Mar 24 15:57:32.590594 [   24.445516]  [<c1055904>] 
xen_timer_interrupt+0x24/0x1e0
Mar 24 15:57:32.590629 [   24.445522]  [<c1390498>] ? 
add_interrupt_randomness+0x38/0x1b0
Mar 24 15:57:32.602594 [   24.445528]  [<c10ec544>] 
handle_irq_event_percpu+0x54/0x1d0
Mar 24 15:57:32.602667 [   24.445534]  [<c10ebcef>] ? irq_to_desc+0xf/0x20
Mar 24 15:57:32.610603 [   24.445539]  [<c10ee968>] ? irq_get_irq_data+0x8/0x10
Mar 24 15:57:32.610639 [   24.445544]  [<c13532a3>] ? evtchn_from_irq+0x13/0x50
Mar 24 15:57:32.622602 [   24.445550]  [<c10ef3f3>] handle_percpu_irq+0x33/0x50
Mar 24 15:57:32.622640 [   24.445555]  [<c10ebd78>] generic_handle_irq+0x18/0x30
Mar 24 15:57:32.630604 [   24.445561]  [<c13555c1>] 
evtchn_fifo_handle_events+0x111/0x120
Mar 24 15:57:32.642584 [   24.445567]  [<c1352bcc>] 
__xen_evtchn_do_upcall+0x3c/0x80
Mar 24 15:57:32.642620 [   24.445572]  [<c13546a2>] 
xen_evtchn_do_upcall+0x22/0x40
Mar 24 15:57:32.650597 [   24.445577]  [<c1722abb>] xen_do_upcall+0x7/0x14
Mar 24 15:57:32.650632 [   24.445584]  [<c11208bf>] ? multi_cpu_stop+0x5f/0x100
Mar 24 15:57:32.662585 [   24.445589]  [<c1120860>] ? 
cpu_stopper_thread+0x150/0x150
Mar 24 15:57:32.662622 [   24.445595]  [<c112077e>] 
cpu_stopper_thread+0x6e/0x150
Mar 24 15:57:32.670617 [   24.445600]  [<c105089b>] ? xen_load_sp0+0xab/0x140
Mar 24 15:57:32.670657 [   24.445606]  [<c105d5a3>] ? __switch_to+0x183/0x4e0
Mar 24 15:57:32.682589 [   24.445611]  [<c10c8236>] ? 
finish_task_switch+0x66/0x140
Mar 24 15:57:32.682626 [   24.445617]  [<c171e095>] ? __schedule+0x375/0x8c5
Mar 24 15:57:32.690620 [   24.445622]  [<c171e095>] ? __schedule+0x375/0x8c5
Mar 24 15:57:32.690658 [   24.445628]  [<c1721942>] ? 
_raw_spin_lock_irqsave+0x32/0xa0
Mar 24 15:57:32.702647 [   24.445634]  [<c1721798>] ? 
_raw_spin_unlock_irqrestore+0x28/0x70
Mar 24 15:57:32.702688 [   24.445641]  [<c10c43fb>] smpboot_thread_fn+0xeb/0x130
Mar 24 15:57:32.710646 [   24.445647]  [<c10c4310>] ? sort_range+0x30/0x30
Mar 24 15:57:32.710695 [   24.445652]  [<c10c1506>] kthread+0x96/0xb0
Mar 24 15:57:32.722649 [   24.445656]  [<c1721e81>] 
ret_from_kernel_thread+0x21/0x30
Mar 24 15:57:32.722695 [   24.445662]  [<c10c1470>] ? 
kthread_create_on_node+0x110/0x110
Mar 24 15:57:32.730640 [   24.445667] rcu_sched kthread starved for 21002 
jiffies!





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