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From: | Max Reitz |
Subject: | Re: [Qemu-devel] [PATCH 0/3] iotests: Fix test 039 |
Date: | Tue, 25 Nov 2014 13:29:29 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 |
On 2014-11-25 at 13:21, Markus Armbruster wrote:
Max Reitz <address@hidden> writes:Test 039 used to failI'm confused: "used to" suggests it doesn't anymore, but you sending a patches strongly suggests something's broken.
Well, it used to fail before this series. :-PYou're right, this sounds bad. Currently, 039 does fail, at least on any system with a /proc/sys/kernel/core_pattern passing the dump to another program. After this series, it does no longer.
because qemu-io -c abort may generate core dumps even with ulimit -c 0 (and the output then contains "(core dumped)").How?
See the patches[1][2] by Mao Chuan Li. If /proc/sys/kernel/core_pattern passes the dump to another program, ulimit -c 0 does not matter.
[1] http://lists.nongnu.org/archive/html/qemu-devel/2014-11/msg02092.html [2] http://lists.nongnu.org/archive/html/qemu-devel/2014-11/msg02093.htmlThe problem with those patches is that they require access to /proc/sys/kernel/core_pattern. I don't like having to run the iotests as root.
Max
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