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From: Michael Ellerman <mpe@ellerman.id.au>
To: Christophe LEROY <christophe.leroy@c-s.fr>,
	Michael Ellerman <patch-notifications@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org, aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [01/24] powerpc/mm: Move exception_enter/exit to a do_page_fault wrapper
Date: Tue, 08 Aug 2017 12:16:42 +1000	[thread overview]
Message-ID: <87poc6olbp.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <dca04b16-c97a-3d8c-a748-7945d0fb80dd@c-s.fr>

Christophe LEROY <christophe.leroy@c-s.fr> writes:

> Le 07/08/2017 =C3=A0 12:41, Michael Ellerman a =C3=A9crit :
>> On Wed, 2017-07-19 at 04:49:23 UTC, Benjamin Herrenschmidt wrote:
>>> This will allow simplifying the returns from do_page_fault
>>>
>>> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
>>=20
>> Series applied to powerpc next, thanks.
>>=20
>> https://git.kernel.org/powerpc/c/7afad422ac61067473d5f3d20bbd54
>
> Boot failure on the 8xx:
>
> [    6.029556] Failed to execute /init (error -14)
> [    6.034623] Starting init: /bin/sh exists but couldn't execute it=20
> (error -14)
> [    6.041489] Kernel panic - not syncing: No working init found.  Try=20
> passing init=3D option to kernel. See Linux=20
> Documentation/admin-guide/init.rst for guidance.
> [    6.055518] CPU: 0 PID: 1 Comm: init Not tainted=20
> 4.13.0-rc3-s3k-dev-00143-g7aa62e972a56 #56
> [    6.063745] Call Trace:
> [    6.066224] [c60f1ed0] [c001a624] panic+0x108/0x250 (unreliable)
> [    6.072140] [c60f1f30] [c0002640] rootfs_mount+0x0/0x58
> [    6.077311] [c60f1f40] [c000cb80] ret_from_kernel_thread+0x5c/0x64
> [    6.083405] Rebooting in 180 seconds..
>
>
> Bisected to c433ec0455f921eaf8dd0262a718ce6f8ad62ea2 ("powerpc/mm:=20
> Pre-filter SRR1 bits before do_page_fault()")

Sorry about that. I don't have a way to test 8xx.

> Will see tomorrow what's wrong with that.

Thanks.

cheers

  reply	other threads:[~2017-08-08  2:16 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-19  4:49 [PATCH 01/24] powerpc/mm: Move exception_enter/exit to a do_page_fault wrapper Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 02/24] powerpc/mm: Pre-filter SRR1 bits before do_page_fault() Benjamin Herrenschmidt
2017-07-22 16:43   ` LEROY Christophe
2017-07-23  1:10     ` Benjamin Herrenschmidt
2017-07-24 13:48     ` Michael Ellerman
2017-07-19  4:49 ` [PATCH 03/24] powerpc/6xx: Handle DABR match before calling do_page_fault Benjamin Herrenschmidt
2017-08-03  0:19   ` Michael Ellerman
2017-08-03  1:00     ` Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 04/24] powerpc/mm: Update definitions of DSISR bits Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 05/24] powerpc/mm: Update bits used to skip hash_page Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 06/24] powerpc/mm: Use symbolic constants for filtering SRR1 bits on ISIs Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 07/24] powerpc/mm: Move out definition of CPU specific is_write bits Benjamin Herrenschmidt
2017-07-22 16:40   ` LEROY Christophe
2017-07-23  1:06     ` Benjamin Herrenschmidt
2017-07-24 11:58     ` Michael Ellerman
2017-07-19  4:49 ` [PATCH 08/24] powerpc/mm: Move error_code checks for bad faults earlier Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 09/24] powerpc/mm: Overhaul handling of bad page faults Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 10/24] powerpc/mm: Move debugger check to notify_page_fault() Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 11/24] powerpc/mm: Simplify returns from __do_page_fault Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 12/24] powerpc/mm: Fix reporting of kernel execute faults Benjamin Herrenschmidt
2018-11-07  8:35   ` Christophe LEROY
2018-11-07 10:39     ` Benjamin Herrenschmidt
     [not found]     ` <87zhtr5d1v.fsf@linux.ibm.com>
2018-11-30  6:08       ` Christophe LEROY
2017-07-19  4:49 ` [PATCH 13/24] powerpc/mm: Make bad_area* helper functions Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 14/24] powerpc/mm: Rework mm_fault_error() Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 15/24] powerpc/mm: Move CMO accounting out of do_page_fault into a helper Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 16/24] powerpc/mm: Cosmetic fix to page fault accounting Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 17/24] powerpc/mm: Move the DSISR_PROTFAULT sanity check Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 18/24] powerpc/mm: Move/simplify faulthandler_disabled() and !mm check Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 19/24] powerpc/mm: Add a bunch of (un)likely annotations to do_page_fault Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 20/24] powerpc/mm: Set fault flags earlier Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 21/24] powerpc/mm: Move page fault VMA access checks to a helper Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 22/24] powerpc/mm: Don't lose "major" fault indication on retry Benjamin Herrenschmidt
2017-07-19  4:49 ` [PATCH 23/24] powerpc/mm: Cleanup check for stack expansion Benjamin Herrenschmidt
2017-07-21 16:59   ` LEROY Christophe
2017-07-24 10:47     ` Michael Ellerman
2017-07-24 17:34       ` LEROY Christophe
2017-07-25 11:19         ` Michael Ellerman
2017-07-31 11:37           ` Christophe LEROY
2017-07-19  4:49 ` [PATCH 24/24] powerpc: Remove old unused icswx based coprocessor support Benjamin Herrenschmidt
2017-08-07 10:41 ` [01/24] powerpc/mm: Move exception_enter/exit to a do_page_fault wrapper Michael Ellerman
2017-08-07 16:37   ` Christophe LEROY
2017-08-08  2:16     ` Michael Ellerman [this message]
2017-08-08  6:45       ` Christophe LEROY
2017-08-08 10:00         ` Michael Ellerman

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