From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
To: kernelnewbies@lists.kernelnewbies.org
Subject: kernel panic
Date: Fri, 16 Oct 2015 18:36:41 +0700 [thread overview]
Message-ID: <CAGdaadYWYKo2k+uWLoh1a_nP4=i7V7UvkbxxmTmSnf6nsx-F4A@mail.gmail.com> (raw)
In-Reply-To: <2015101519231616369836@wingtech.com>
On Thu, Oct 15, 2015 at 6:23 PM, jinzhao at wingtech.com <jinzhao@wingtech.com>
wrote:
> Dear all:
> I met a problem as below, what the function of walk_page_range??
> Exception Class: Kernel (KE)
> PC is at [<ffffffc00017fc90>] walk_page_range+0x3c/0x314
>
> Current Executing Process:
> [Binder_C, 3611][main, 354]
>
> Backtrace:
> [<ffffffc0009f21dc>] __do_kernel_fault.part.5+0x70/0x84
> [<ffffffc0000942f4>] do_bad_area+0x90/0x94
> [<ffffffc000094340>] do_translation_fault+0x30/0x4c
> [<ffffffc0000813fc>] do_mem_abort+0x38/0x98
> [<ffffffc000083c58>] el1_da+0x1c/0x88
> [<ffffffc0001eb3e0>] show_smap+0x88/0x284
> [<ffffffc0001eb5e8>] show_pid_smap+0xc/0x18
> [<ffffffc0001aefb8>] seq_read+0x1a4/0x40c
> [<ffffffc00018e75c>] vfs_read+0x88/0x170
> [<ffffffc00018ebf0>] SyS_read+0x40/0x8c
> [<ffffffc000084308>] cpu_switch_to+0x48/0x4c
> [<ffffffffffffffff>] 0xffffffffffffffff
>
>
> Thanks!
> ------------------------------
> jinzhao at wingtech.cn
>
>
AFAIK, that's the function to get PTE of the related pages, then get the
virtual address of them.
Maybe the caller hit invalid PTE ?
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
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next prev parent reply other threads:[~2015-10-16 11:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-15 11:23 kernel panic jinzhao at wingtech.com
2015-10-16 11:36 ` Mulyadi Santosa [this message]
2019-10-15 7:21 Kernel Panic Christophe DUMONT
2019-10-15 17:13 ` Valentin Vidić
2019-10-15 20:20 ` Valdis Klētnieks
2019-10-16 7:34 ` Christophe DUMONT
2019-10-16 14:16 ` Valdis Klētnieks
2019-10-17 7:48 ` Christophe DUMONT
2019-10-17 7:54 ` Valentin Vidić
2019-10-22 9:38 ` Christophe DUMONT
2019-10-22 17:20 ` Greg KH
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