[Xen-devel] [BUG] hhvm running on Ubuntu 13.04 with Xen Hypervisor - linux kernel panic

[Craig Carnell <ccarnell@xxxxxxxxxx>]

Hi,

I am trying out hiphop vm (the php just in time compiler). My setup is a Rackspace Cloud Server running Ubuntu 13.04 with kernel 3.8.0-30-generic #44-Ubuntu SMP Thu Aug 22 20:52:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

The cloud server uses Xen Hypervisor.

Hiphopvm is compiled from source using the github repo. When running hhvm from the command line (without any options or php application) the system immediately crashes, throwing linux into a kernel panic and thus death.

I have reported this issue on hiphop github issue page:

https://github.com/facebook/hiphop-php/issues/1065

I am not sure if this is a linux kernel bug or a xen hypervisor bug:

The output of /var/log/syslog:

Sep 18 10:55:58 web kernel: [92118.674736] general protection fault: 0000 [#1] SMP 

Sep 18 10:55:58 web kernel: [92118.674754] Modules linked in: xenfs(F) xen_privcmd(F) xt_tcpudp(F) nf_conntrack_ipv4(F) nf_defrag_ipv4(F) xt_state(F) nf_conntrack(F) xt_comment(F) iptable_filter(F) ip_tables(F) x_tables(F) microcode(F) lp(F) parport(F)

Sep 18 10:55:58 web kernel: [92118.674781] CPU 0 

Sep 18 10:55:58 web kernel: [92118.674787] Pid: 5020, comm: hhvm Tainted: GF            3.8.0-30-generic #44-Ubuntu  

Sep 18 10:55:58 web kernel: [92118.674795] RIP: e030:[<ffffffff81003046>]  [<ffffffff81003046>] native_read_pmc+0x6/0x20

Sep 18 10:55:58 web kernel: [92118.674809] RSP: e02b:ffff8800026b9d20  EFLAGS: 00010083

Sep 18 10:55:58 web kernel: [92118.674814] RAX: ffffffff81c1bd80 RBX: 0000000000000000 RCX: 0000000000000000

Sep 18 10:55:58 web kernel: [92118.674819] RDX: 0000000000005f6c RSI: ffff8800f7c81900 RDI: 0000000000000000

Sep 18 10:55:58 web kernel: [92118.674824] RBP: ffff8800026b9d20 R08: 00000000000337d8 R09: ffff8800e933dcc0

Sep 18 10:55:58 web kernel: [92118.674830] R10: 00007fff2d3caea0 R11: 0000000000000246 R12: ffff8800f87ecc00

Sep 18 10:55:58 web kernel: [92118.674835] R13: ffff800000000001 R14: ffff8800f87ecd70 R15: 0000000000000010

Sep 18 10:55:58 web kernel: [92118.674844] FS:  00007f43d4c9b180(0000) GS:ffff8800ffc00000(0000) knlGS:0000000000000000

Sep 18 10:55:58 web kernel: [92118.674850] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b

Sep 18 10:55:58 web kernel: [92118.674855] CR2: 000000000105ebc0 CR3: 00000000025cd000 CR4: 0000000000000660

Sep 18 10:55:58 web kernel: [92118.674861] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

Sep 18 10:55:58 web kernel: [92118.674867] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400

Sep 18 10:55:58 web kernel: [92118.674872] Process hhvm (pid: 5020, threadinfo ffff8800026b8000, task ffff8800f7cfc5c0)

Sep 18 10:55:58 web kernel: [92118.674879] Stack:

Sep 18 10:55:58 web kernel: [92118.674882]  ffff8800026b9d58 ffffffff81024625 0000000000000000 ffff8800f87ecc00

Sep 18 10:55:58 web kernel: [92118.674893]  ffff8800f7c8190c ffffffff811231a0 0000000000000005 ffff8800026b9d68

Sep 18 10:55:58 web kernel: [92118.674902]  ffffffff81024689 ffff8800026b9d90 ffffffff811232a6 00000000ffff02ff

Sep 18 10:55:58 web kernel: [92118.674911] Call Trace:

Sep 18 10:55:58 web kernel: [92118.674920]  [<ffffffff81024625>] x86_perf_event_update+0x55/0xb0

Sep 18 10:55:58 web kernel: [92118.674929]  [<ffffffff811231a0>] ? perf_read+0x2f0/0x2f0

Sep 18 10:55:58 web kernel: [92118.674936]  [<ffffffff81024689>] x86_pmu_read+0x9/0x10

Sep 18 10:55:58 web kernel: [92118.674942]  [<ffffffff811232a6>] __perf_event_read+0x106/0x110

Sep 18 10:55:58 web kernel: [92118.674951]  [<ffffffff810b9987>] smp_call_function_single+0x147/0x170

Sep 18 10:55:58 web kernel: [92118.674959]  [<ffffffff811240d0>] ? perf_mmap+0x2f0/0x2f0

Sep 18 10:55:58 web kernel: [92118.674966]  [<ffffffff81122dda>] perf_event_read+0x10a/0x110

Sep 18 10:55:58 web kernel: [92118.674972]  [<ffffffff811240d0>] ? perf_mmap+0x2f0/0x2f0

Sep 18 10:55:58 web kernel: [92118.674979]  [<ffffffff811240dd>] perf_event_reset+0xd/0x20

Sep 18 10:55:58 web kernel: [92118.674987]  [<ffffffff8111ff08>] perf_event_for_each_child+0x38/0xa0

Sep 18 10:55:58 web kernel: [92118.674994]  [<ffffffff811240d0>] ? perf_mmap+0x2f0/0x2f0

Sep 18 10:55:58 web kernel: [92118.675001]  [<ffffffff8112255a>] perf_ioctl+0xba/0x340

Sep 18 10:55:58 web kernel: [92118.675009]  [<ffffffff811b1885>] ? fd_install+0x25/0x30

Sep 18 10:55:58 web kernel: [92118.675016]  [<ffffffff811a60e9>] do_vfs_ioctl+0x99/0x570

Sep 18 10:55:58 web kernel: [92118.675023]  [<ffffffff811a6651>] sys_ioctl+0x91/0xb0

Sep 18 10:55:58 web kernel: [92118.675031]  [<ffffffff816d575d>] system_call_fastpath+0x1a/0x1f

Sep 18 10:55:58 web kernel: [92118.675036] Code: 00 00 00 00 00 55 89 f9 48 89 e5 0f 32 31 ff 89 c0 48 c1 e2 20 89 3e 48 09 c2 48 89 d0 5d c3 66 0f 1f 44 00 00 55 89 f9 48 89 e5 <0f> 33 89 c0 48 c1 e2 20 48 09 c2 48 89 d0 5d c3 66 2e 0f 1f 84 

Sep 18 10:55:58 web kernel: [92118.675103] RIP  [<ffffffff81003046>] native_read_pmc+0x6/0x20

Sep 18 10:55:58 web kernel: [92118.675110]  RSP <ffff8800026b9d20>

Sep 18 10:55:58 web kernel: [92118.675118] ---[ end trace 1a73231ba5f74716 ]---

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