From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Paolo Bonzini <pbonzini@redhat.com>,
Thomas Huth <thuth@redhat.com>,
qemu-devel@nongnu.org
Cc: Laurent Vivier <lvivier@redhat.com>,
Yury Kotov <yury-kotov@yandex-team.ru>,
Richard Henderson <richard.henderson@linaro.org>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [PATCH] tests/qtest/libqtest: Do not overwrite child coredump
Date: Tue, 7 Jul 2020 15:32:33 +0200 [thread overview]
Message-ID: <12844fd3-19f9-11e9-0572-09d17dff68e5@amsat.org> (raw)
In-Reply-To: <2e62e2a9-6fd0-fe6a-6122-2e10aab265e1@redhat.com>
On 7/7/20 11:29 AM, Paolo Bonzini wrote:
> On 07/07/20 11:03, Thomas Huth wrote:
>>> +++ b/tests/qtest/libqtest.c
>>> @@ -173,7 +173,12 @@ static void kill_qemu(QTestState *s)
>>> fprintf(stderr, "%s:%d: kill_qemu() detected QEMU death "
>>> "from signal %d (%s)%s\n",
>>> __FILE__, __LINE__, sig, signame, dump);
>>> - abort();
>>> + if (WCOREDUMP(wstatus)) {
>>> + /* Preserve child coredump */
>>> + exit(1);
>>> + } else {
>>> + abort();
>>> + }
>>> }
>>> }
>> Would it maybe rather make sense to always use exit(1) unconditionally here?
>
> But why is it a problem to overwrite the child core dump? Aren't both
> stashed away if you use the core.PID name as is common?
I'm not sure what you mean. Without this patch, the coredump I get
is qtest parent, coredumpctl list the child but the coredump is
unavailable. With this patch I don't get the uninteresting (for my
uses) qtest parent but the child coredump. I'm using Fedora 30,
I don't remember changing the coredumpctl default config. Travis-CI
is based on Ubuntu.
>
> Paolo
>
>
prev parent reply other threads:[~2020-07-07 13:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 3:19 [PATCH] tests/qtest/libqtest: Do not overwrite child coredump Philippe Mathieu-Daudé
2020-07-07 9:03 ` Thomas Huth
2020-07-07 9:29 ` Paolo Bonzini
2020-07-07 13:32 ` Philippe Mathieu-Daudé [this message]
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