Messages in this thread | | | Subject | Re: kernel 4.4-rc1 BUG when booting as Xen dom0 | From | Boris Ostrovsky <> | Date | Tue, 17 Nov 2015 08:40:42 -0500 |
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On 11/17/2015 08:38 AM, Juergen Gross wrote: > Trying to boot a 4.4 kernel as Xen dom0 crashes the system: > > [ 9.949589] ACPI: Added _OSI(Module Device) > [ 9.957803] ACPI: Added _OSI(Processor Device) > [ 9.966814] ACPI: Added _OSI(3.0 _SCP Extensions) > [ 9.976346] ACPI: Added _OSI(Processor Aggregator Device) > [ 9.988715] BUG: unable to handle kernel NULL pointer dereference at > (null) > [ 10.004212] IP: [<ffffffff8135cf32>] xen_irq_init+0x22/0xe0 > [ 10.015468] PGD 0 > [ 10.019622] Oops: 0002 [#1] SMP > [ 10.026217] Modules linked in: > [ 10.032446] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-rc1-pv+ #490 > [ 10.045974] Hardware name: Dell Inc. Latitude E6440/0159N7, BIOS A07 > 06/26/2014 > [ 10.060718] task: ffff8801fa570d40 ti: ffff8801fa574000 task.ti: > ffff8801fa574000 > [ 10.075798] RIP: e030:[<ffffffff8135cf32>] [<ffffffff8135cf32>] > xen_irq_init+0x22/0xe0 > [ 10.091910] RSP: e02b:ffff8801fa577d38 EFLAGS: 00010246 > [ 10.102646] RAX: 0000000000000000 RBX: 0000000000000009 RCX: > 0000000000000000 > [ 10.117089] RDX: 0000000000000001 RSI: 00000000024080c0 RDI: > ffff8801fb000df0 > [ 10.131437] RBP: 0000000000000009 R08: 0000000000000001 R09: > ffff8801fb000d88 > [ 10.145824] R10: ffff8801fb000df8 R11: 0000000000000000 R12: > 0000000000000009 > [ 10.160205] R13: ffffffff817736e5 R14: 0000000000000009 R15: > 0000000000000000 > [ 10.174592] FS: 0000000000000000(0000) GS:ffff8801ff800000(0000) > knlGS:0000000000000000 > [ 10.190895] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 10.202492] CR2: 0000000000000000 CR3: 000000000180c000 CR4: > 0000000000042660 > [ 10.216878] Stack: > [ 10.221029] 0000000000000009 0000000000000001 ffffffff8135dd9f > 0000000000000000 > [ 10.235931] ffff8801fa577dd0 0000000000000009 0000000000000000 > 0000000000000001 > [ 10.250836] ffffffff81932e2e 0000000000000000 0000000000000000 > ffffffff81415c53 > [ 10.265740] Call Trace: > [ 10.270774] [<ffffffff8135dd9f>] ? xen_bind_pirq_gsi_to_irq+0x7f/0x240 > [ 10.284122] [<ffffffff81932e2e>] ? acpi_sleep_proc_init+0x22/0x22 > [ 10.296601] [<ffffffff81415c53>] ? > xen_register_pirq.constprop.9+0x83/0xd0 > [ 10.310640] [<ffffffff81415ce8>] ? acpi_register_gsi_xen+0x48/0xc0 > [ 10.323292] [<ffffffff8104d8a6>] ? acpi_get_override_irq+0xa6/0x120 > [ 10.336117] [<ffffffff8133515c>] ? acpi_ev_sci_dispatch+0x53/0x53 > [ 10.348595] [<ffffffff81932e2e>] ? acpi_sleep_proc_init+0x22/0x22 > [ 10.361071] [<ffffffff810465f9>] ? acpi_gsi_to_irq+0x59/0x70 > [ 10.372683] [<ffffffff8131f781>] ? > acpi_os_install_interrupt_handler+0x44/0xbf > [ 10.387427] [<ffffffff81332da0>] ? > acpi_ev_install_xrupt_handlers+0x12/0x5f > [ 10.401627] [<ffffffff81932e9f>] ? acpi_init+0x71/0x289 > [ 10.412368] [<ffffffff81932e2e>] ? acpi_sleep_proc_init+0x22/0x22 > [ 10.424849] [<ffffffff81002101>] ? do_one_initcall+0xa1/0x1d0 > [ 10.436633] [<ffffffff81087700>] ? parse_args+0x270/0x460 > [ 10.447724] [<ffffffff818f81cb>] ? kernel_init_freeable+0x169/0x1f3 > [ 10.460551] [<ffffffff818f7958>] ? initcall_blacklist+0xb2/0xb2 > [ 10.472681] [<ffffffff81514750>] ? rest_init+0x80/0x80 > [ 10.483251] [<ffffffff81514755>] ? kernel_init+0x5/0xe0 > [ 10.493996] [<ffffffff8152000f>] ? ret_from_fork+0x3f/0x70 > [ 10.505263] [<ffffffff81514750>] ? rest_init+0x80/0x80 > [ 10.515832] Code: fe ff ff 66 0f 1f 44 00 00 55 89 fd 53 e8 c7 f5 d5 > ff 48 85 c0 74 08 48 8b 40 10 48 83 c0 18 48 8b 15 33 d9 2a 00 be c0 80 > 40 02 <48> 89 10 48 8b 15 2c d9 2a 00 48 89 50 08 48 8b 15 29 d9 2a 00 > [ 10.553606] RIP [<ffffffff8135cf32>] xen_irq_init+0x22/0xe0 > [ 10.565051] RSP <ffff8801fa577d38> > [ 10.572157] CR2: 0000000000000000 > > irq_get_affinity_mask(irq) in xen_irq_init() is returning NULL: > > static void xen_irq_init(unsigned irq) > { > struct irq_info *info; > #ifdef CONFIG_SMP > /* By default all event channels notify CPU#0. */ > cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(0)); > #endif > > Is this already known?
Yes: http://lists.xenproject.org/archives/html/xen-devel/2015-11/msg01800.html
I will send patch later today.
-boris
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