RE: [Xen-devel] Latest pvops hangs on boot

["Williams, Mitch A" <mitch.a.williams@xxxxxxxxx>]

Replying to my own email...

>Thanks for the quick replies, guys. I've updated my boot config and am now
>getting much more logging going on, though I'm still lost as to what's
>going on. My latest log file is attached.  The system hangs right in the
>middle of a line of text. On a previous boot, I got a few characters more,
>so it's not perfectly deterministic.
>
>Is there any place these command line options are documented, outside of
>the source? This is the first I've heard of some of these.
>

I started poking through the source, and found that the correct option is 
sync_console, not console_sync. Now that I've done that, I'm finally seeing a 
panic:

[    4.587828] ACPI: Core revision 20090521
[    4.601065]   alloc irq_desc for 1286 on node 0
[    4.605836]   alloc kstat_irqs on node 0
[    4.610014] cpu 0 spinlock event irq 1286
[    4.614274] BUG: unable to handle kernel NULL pointer dereference at (null)
[    4.621455] IP: [<ffffffff814a5b89>] set_cpu_sibling_map+0x116/0x2f9
[    4.628051] PGD 0 
[    4.630296] Oops: 0002 [#1] SMP 
[    4.633753] last sysfs file: 
[    4.636961] CPU 0 
[    4.639204] Modules linked in:
[    4.642490] Pid: 1, comm: swapper Not tainted 2.6.31.5 #4 X8DTN
[    4.648643] RIP: e030:[<ffffffff814a5b89>]  [<ffffffff814a5b89>] 
set_cpu_sibling_map+0x116/0x2f9
[    4.657873] RSP: e02b:ffff8802ed86fe40  EFLAGS: 00010246
[    4.663418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    4.670794] RDX: ffffc90000000000 RSI: ffffffff81856100 RDI: 0000000000000000
[    4.678169] RBP: ffff8802ed86fea0 R08: 0000000000000000 R09: ffff8801bfc25e00
[    4.685543] R10: ffff8801bfc25e00 R11: ffff8802ed86fdb0 R12: 0000000000001000
[    4.692919] R13: ffffc90000014980 R14: ffffffffffffffff R15: 0000000000000000
[    4.700296] FS:  0000000000000000(0000) GS:ffffc90000000000(0000) 
knlGS:0000000000000000
[    4.708839] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[    4.714819] CR2: 0000000000000000 CR3: 0000000001001000 CR4: 0000000000002660
[    4.728633] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    4.736008] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[    4.743383] Process swapper (pid: 1, threadinfo ffff8802ed86e000, task 
ffff8801bf078000)
[    4.751920] Stack:
[    4.754172]  ffff8802ed86fe50 0000000000000506 ffff8801bfc3ccc0 
0000000000000000
[    4.761539] <0> 0000000000000506 ffff8801bfc3cd2c 0000000034e8bb78 
ffffffff819a3270
[    4.769581] <0> 0000000000001000 0000000000000000 ffffffffffffffff 
0000000000000000
[    4.778048] Call Trace:
[    4.780740]  [<ffffffff81882433>] xen_smp_prepare_cpus+0x3d/0x134
[    4.787075]  [<ffffffff8100fbb4>] ? xen_spin_lock+0xb/0xd
[    4.792715]  [<ffffffff8187da4f>] kernel_init+0x84/0x1d3
[    4.798270]  [<ffffffff81014daa>] child_rip+0xa/0x20
[    4.803477]  [<ffffffff81013f67>] ? int_ret_from_sys_call+0x7/0x1b
[    4.809900]  [<ffffffff8101471d>] ? retint_restore_args+0x5/0x6
[    4.816062]  [<ffffffff8100e7a5>] ? xen_force_evtchn_callback+0xd/0xf
[    4.822743]  [<ffffffff8100e7a5>] ? xen_force_evtchn_callback+0xd/0xf
[    4.829425]  [<ffffffff81014da0>] ? child_rip+0x0/0x20
[    4.834805] Code: c7 e8 60 21 b8 ff 48 8b 55 a8 3b 05 92 03 3b 00 0f 8c 60 
ff ff ff eb 17 4a 8b 14 fd 90 63 85 81 48 c7 c0 80 e2 00 00 48 8b 04 10 <3e> 0f 
ab 38 49 8b 85 a0 00 00 00 3e 0f ab 18 48 c7 c0 80 49 01 
[    4.854192] RIP  [<ffffffff814a5b89>] set_cpu_sibling_map+0x116/0x2f9
[    4.860864]  RSP <ffff8802ed86fe40>
[    4.864591] CR2: 0000000000000000
[    4.868151] ---[ end trace 4eaa2a86a8e2da22 ]---
[    4.873040] Kernel panic - not syncing: Attempted to kill init!
[    4.879204] Pid: 1, comm: swapper Tainted: G      D    2.6.31.5 #4
[    4.885625] Call Trace:
[    4.888314]  [<ffffffff814a9e70>] panic+0x75/0x130
[    4.893348]  [<ffffffff8100fbb4>] ? xen_spin_lock+0xb/0xd
[    4.898984]  [<ffffffff8104be9e>] do_exit+0x75/0x6fe
[    4.904191]  [<ffffffff814ad0a5>] oops_end+0xdb/0xe3
[    4.909400]  [<ffffffff81034118>] no_context+0x1f1/0x200
[    4.914954]  [<ffffffff810342d3>] __bad_area_nosemaphore+0x1ac/0x1d2
[    4.921551]  [<ffffffff8100922a>] ? hypercall_page+0x22a/0x1006
[    4.927711]  [<ffffffff8100922a>] ? hypercall_page+0x22a/0x1006
[    4.933872]  [<ffffffff8100922a>] ? hypercall_page+0x22a/0x1006
[    4.940035]  [<ffffffff8100e7a5>] ? xen_force_evtchn_callback+0xd/0xf
[    4.946716]  [<ffffffff8100eed2>] ? check_events+0x12/0x20
[    4.952445]  [<ffffffff81034307>] bad_area_nosemaphore+0xe/0x10
[    4.958606]  [<ffffffff814ae5ea>] do_page_fault+0x174/0x2b2
[    4.964422]  [<ffffffff814ac545>] page_fault+0x25/0x30
[    4.969795]  [<ffffffff814a5b89>] ? set_cpu_sibling_map+0x116/0x2f9
[    4.976303]  [<ffffffff81882433>] xen_smp_prepare_cpus+0x3d/0x134
[    4.982638]  [<ffffffff8100fbb4>] ? xen_spin_lock+0xb/0xd
[    4.988280]  [<ffffffff8187da4f>] kernel_init+0x84/0x1d3
[    4.993828]  [<ffffffff81014daa>] child_rip+0xa/0x20
[    4.999025]  [<ffffffff81013f67>] ? int_ret_from_sys_call+0x7/0x1b
[    5.005486]  [<ffffffff8101471d>] ? retint_restore_args+0x5/0x6
[    5.011650]  [<ffffffff8100e7a5>] ? xen_force_evtchn_callback+0xd/0xf
[    5.018332]  [<ffffffff8100e7a5>] ? xen_force_evtchn_callback+0xd/0xf
[    5.025013]  [<ffffffff81014da0>] ? child_rip+0x0/0x20

Complete log is attached.

-Mitch

Attachment: bootlog2.txt
Description: bootlog2.txt

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