Re: [PATCH] x86: Remove WARN_ON(in_nmi()) from vmalloc_fault

From: Borislav Petkov
Date: Wed Oct 16 2013 - 09:02:12 EST


On Wed, Oct 16, 2013 at 02:51:11PM +0200, Ingo Molnar wrote:
> The one posted in the thread shows:
>
> [ 17.148755] [<c2825b08>] do_page_fault+0x8/0x10
> [ 17.153926] [<c2823066>] error_code+0x5a/0x60
> [ 17.158905] [<c2825b00>] ? __do_page_fault+0x4a0/0x4a0
> [ 17.164760] [<c208d1a9>] ? module_address_lookup+0x29/0xb0
> [ 17.170999] [<c208dddb>] kallsyms_lookup+0x9b/0xb0
> [ 17.186804] [<c208def4>] sprint_symbol+0x14/0x20
> [ 17.192063] [<c208df1e>] __print_symbol+0x1e/0x40
> [ 17.197430] [<c25e00d7>] ? ashmem_shrink+0x77/0xf0
> [ 17.202895] [<c25e13e0>] ? logger_aio_write+0x230/0x230
> [ 17.208845] [<c205bdf5>] ? up+0x25/0x40
> [ 17.213242] [<c2039cb7>] ? console_unlock+0x337/0x440
> [ 17.218998] [<c2818236>] ? printk+0x38/0x3a
> [ 17.223782] [<c20006d0>] __show_regs+0x70/0x190
> [ 17.228954] [<c200353a>] show_regs+0x3a/0x1b0
> [ 17.233931] [<c2818236>] ? printk+0x38/0x3a
> [ 17.238717] [<c2824182>] arch_trigger_all_cpu_backtrace_handler+0x62/0x80
> [ 17.246413] [<c2823919>] nmi_handle.isra.0+0x39/0x60
> [ 17.252071] [<c2823a29>] do_nmi+0xe9/0x3f0

Btw, you probably should drop all the numbers and leave only the
function names in the stack trace.

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
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