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From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
To: Laurent Vivier <laurent@vivier.eu>
Cc: Richard Henderson <rth@twiddle.net>,
	qemu-devel@nongnu.org, bruno@clisp.org, aurelien@aurel32.net
Subject: Re: [Qemu-devel] [PATCH 05/11] linux-user/sh4: Notice gUSA regions during signal delivery
Date: Thu, 6 Jul 2017 13:07:56 +0200	[thread overview]
Message-ID: <20170706110756.GD23904@physik.fu-berlin.de> (raw)
In-Reply-To: <e969146b-3061-e0ee-3e5c-e709c73abc11@vivier.eu>

On Thu, Jul 06, 2017 at 03:09:59AM +0200, Laurent Vivier wrote:
> Reviewed-by: Laurent Vivier <laurent@vivier.eu>

I have identified this patch as reponsible for the
segfaults. Reverting this patch fixes the issue. The crashes are
random. Sometimes it crashes directly when entering the chroot,
sometimes only after a command like running "apt
update". Interestingly, the issue does not reproduce on an older
chroot from 2015.

I have uploaded two chroots for testing, one from 2015 [1] and one
freshly generated [2] which shows the crashes with patch nr. 5
applied.

Adrian

> [1] https://people.debian.org/~glaubitz/chroots/unstable-sh4-20150315.tar.gz
> [2] https://people.debian.org/~glaubitz/chroots/unstable-sh4-20170706.tgz

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

  parent reply	other threads:[~2017-07-06 11:08 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-06  0:23 [Qemu-devel] [PATCH 00/11] target/sh4 improvments Richard Henderson
2017-07-06  0:23 ` [Qemu-devel] [PATCH 01/11] target/sh4: Use cmpxchg for movco Richard Henderson
2017-07-06 15:25   ` Richard Henderson
2017-07-06  0:23 ` [Qemu-devel] [PATCH 02/11] target/sh4: Consolidate end-of-TB tests Richard Henderson
2017-07-06 15:17   ` Aurelien Jarno
2017-07-06  0:23 ` [Qemu-devel] [PATCH 03/11] target/sh4: Handle user-space atomics Richard Henderson
2017-07-06 15:50   ` Aurelien Jarno
2017-07-06  0:23 ` [Qemu-devel] [PATCH 04/11] target/sh4: Recognize common gUSA sequences Richard Henderson
2017-07-06  0:23 ` [Qemu-devel] [PATCH 05/11] linux-user/sh4: Notice gUSA regions during signal delivery Richard Henderson
2017-07-06  1:09   ` Laurent Vivier
2017-07-06  8:10     ` John Paul Adrian Glaubitz
2017-07-06  8:35       ` Laurent Vivier
2017-07-06  9:07         ` John Paul Adrian Glaubitz
2017-07-06  9:13         ` John Paul Adrian Glaubitz
2017-07-06  9:19           ` Laurent Vivier
2017-07-06 11:07     ` John Paul Adrian Glaubitz [this message]
2017-07-06 12:09   ` Laurent Vivier
2017-07-06  0:23 ` [Qemu-devel] [PATCH 06/11] target/sh4: Hoist register bank selection Richard Henderson
2017-07-06  0:23 ` [Qemu-devel] [PATCH 07/11] target/sh4: Unify cpu_fregs into FREG Richard Henderson
2017-07-06  1:55   ` Philippe Mathieu-Daudé
2017-07-06  0:23 ` [Qemu-devel] [PATCH 08/11] target/sh4: Pass DisasContext to fpr64 routines Richard Henderson
2017-07-06  0:23 ` [Qemu-devel] [PATCH 09/11] target/sh4: Avoid a potential translator crash for malformed FPR64 Richard Henderson
2017-07-06  0:24 ` [Qemu-devel] [PATCH 10/11] target/sh4: Hoist fp bank selection Richard Henderson
2017-07-06  0:24 ` [Qemu-devel] [PATCH 11/11] target/sh4: Eliminate DREG macro Richard Henderson
2017-07-06  1:15 ` [Qemu-devel] [PATCH 00/11] target/sh4 improvments Laurent Vivier
2017-07-06 14:55 ` Aurelien Jarno
2017-07-06 12:55 [Qemu-devel] [PATCH 05/11] linux-user/sh4: Notice gUSA regions during signal delivery John Paul Adrian Glaubitz
2017-07-06 13:12 ` John Paul Adrian Glaubitz

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