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Re: [Xen-devel] [xen-unstable test] 104131: regressions - FAIL



On January 12, 2017 5:14 PM, Andrew Cooper wrote:
>On 12/01/2017 06:46, osstest service owner wrote:
>> flight 104131 xen-unstable real [real]
>> http://logs.test-lab.xenproject.org/osstest/logs/104131/
>>
>> Regressions :-(
>>
>> Tests which did not succeed and are blocking, including tests which
>> could not be run:
>>  test-amd64-i386-xl-qemuu-debianhvm-amd64 16 guest-stop   fail
>REGR. vs. 104119
>
>Jan 12 01:25:17.397607 (XEN) Assertion 'intack.vector >= pt_vector' failed at
>intr.c:321
>Jan 12 01:25:37.133596 (XEN) ----[ Xen-4.9-unstable  x86_64  debug=y
>Not tainted ]----
>Jan 12 01:25:37.141577 (XEN) CPU:    14
>Jan 12 01:25:37.141607 (XEN) RIP:    e008:[<ffff82d0801ef7fc>]
>vmx_intr_assist+0x35e/0x51d
>Jan 12 01:25:37.149617 (XEN) RFLAGS: 0000000000010202   CONTEXT:
>hypervisor (d15v0)
>Jan 12 01:25:37.149655 (XEN) rax: 0000000000000038   rbx:
>ffff830079e1e000   rcx: 0000000000000030
>Jan 12 01:25:37.157582 (XEN) rdx: 0000000000000000   rsi:
>0000000000000030   rdi: ffff830079e1e000
>Jan 12 01:25:37.165584 (XEN) rbp: ffff83047de2ff08   rsp: ffff83047de2fea8
>r8:  ffff82c00022f000
>Jan 12 01:25:37.173579 (XEN) r9:  ffff8301b63ede80   r10:
>ffff830176386560   r11: 000001955ee79bd0
>Jan 12 01:25:37.181582 (XEN) r12: 0000000000003002   r13:
>0000000000003002   r14: 0000000000000030
>Jan 12 01:25:37.189584 (XEN) r15: ffff83023fec2000   cr0:
>0000000080050033   cr4: 00000000003526e0
>Jan 12 01:25:37.197572 (XEN) cr3: 0000000232edb000   cr2:
>0000000002487034
>Jan 12 01:25:37.205569 (XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000
>ss: 0000   cs: e008
>Jan 12 01:25:37.205606 (XEN) Xen code around <ffff82d0801ef7fc>
>(vmx_intr_assist+0x35e/0x51d):
>Jan 12 01:25:37.213575 (XEN)  41 0f b6 f6 39 f0 7e 02 <0f> 0b 48 89 df e8 51
>20 00 00 b8 10 08 00 00 0f Jan 12 01:25:37.221561 (XEN) Xen stack trace
>from rsp=ffff83047de2fea8:
>Jan 12 01:25:37.229600 (XEN)    ffff82d08031aa80 00000038ffffffff
>ffff83047de2ffff ffff83023fec2000
>Jan 12 01:25:37.237594 (XEN)    ffff83047de2fef8 ffff82d080130cb6
>ffff830079e1e000 ffff830079e1e000
>Jan 12 01:25:37.245588 (XEN)    ffff83007bae2000 000000000000000e
>ffff830233117000 ffff83023fec2000
>Jan 12 01:25:37.253594 (XEN)    ffff83047de2fdc0 ffff82d0801fdeb1
>0000000000000004 00000000000000c2
>Jan 12 01:25:37.261584 (XEN)    0000000000000020 0000000000000007
>ffff8800e8d28000 ffffffff81add0a0
>Jan 12 01:25:37.269607 (XEN)    0000000000000246 0000000000000000
>ffff880142400008 0000000000000004
>Jan 12 01:25:37.277580 (XEN)    0000000000000036 0000000000000000
>00000000000003f8 00000000000003f8
>Jan 12 01:25:37.285584 (XEN)    ffffffff81add0a0 0000beef0000beef
>ffffffff813899a4 000000bf0000beef
>Jan 12 01:25:37.293567 (XEN)    0000000000000002 ffff880147c03e08
>000000000000beef 1cec835356e5beef
>Jan 12 01:25:37.293606 (XEN)    085d8b002674beef 01dcb38b000cbeef
>8914458d3174beef 2444c7100000000e
>Jan 12 01:25:37.301586 (XEN)    ffff830079e1e000 00000031bfc37600
>00000000003526e0
>Jan 12 01:25:37.309607 (XEN) Xen call trace:
>Jan 12 01:25:37.309639 (XEN)    [<ffff82d0801ef7fc>]
>vmx_intr_assist+0x35e/0x51d
>Jan 12 01:25:37.317591 (XEN)    [<ffff82d0801fdeb1>]
>vmx_asm_vmexit_handler+0x41/0x120
>Jan 12 01:25:37.325598 (XEN)
>Jan 12 01:25:37.325624 (XEN)
>Jan 12 01:25:37.325647 (XEN)
>****************************************
>Jan 12 01:25:37.333653 (XEN) Panic on CPU 14:
>Jan 12 01:25:37.333684 (XEN) Assertion 'intack.vector >= pt_vector' failed at
>intr.c:321 Jan 12 01:25:37.341571 (XEN)
>****************************************
>Jan 12 01:25:37.341603 (XEN)
>Jan 12 01:25:37.341626 (XEN) Reboot in five seconds...
>Jan 12 01:25:37.349566 (XEN) Resetting with ACPI MEMORY or I/O
>RESET_REG.
>
>This is caused by "x86/apicv: fix RTC periodic timer and apicv issue".  It is
>not a deterministic issue, as it appears to have survived a week of testing
>already, but there is clearly something still problematic with the code.
>


Andrew,
If you have, could you give more information? Such as the value of 
intack.vector / pt_vector..
I guess, the reason may be that the intack.vector is ' uint8_t ' and the 
pt_vector is 'int'..

Or there is a corner case that intack.vector is __not__ the highest priority 
vector..

Kevin / Jan,  any thoughts?

Quan

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