From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
x86@kernel.org
Cc: boris.ostrovsky@oracle.com, hpa@zytor.com, tglx@linutronix.de,
mingo@redhat.com, Borislav Petkov <bp@alien8.de>,
peterz@infradead.org, Waiman Long <longman@redhat.com>
Subject: Re: [PATCH 0/2] xen: fix two issues in Xen pv qspinlock handling
Date: Mon, 1 Oct 2018 09:37:01 +0200 [thread overview]
Message-ID: <9840f232-acc4-310d-d87d-8fbf329a9664@suse.com> (raw)
In-Reply-To: <20181001071641.19282-1-jgross@suse.com>
Correcting Waiman's mail address
On 01/10/2018 09:16, Juergen Gross wrote:
> The Xen specific queue spinlock wait function has two issues which
> could result in a hanging system.
>
> They have a similar root cause of clearing a pending wakeup of a
> waiting vcpu and later going to sleep waiting for the just cleared
> wakeup event, which of course won't ever happen.
>
> Juergen Gross (2):
> xen: fix race in xen_qlock_wait()
> xen: make xen_qlock_wait() nestable
>
> arch/x86/xen/spinlock.c | 33 ++++++++++++---------------------
> 1 file changed, 12 insertions(+), 21 deletions(-)
>
> Cc: longman@redhat.com
> Cc: peterz@infradead.org
>
next prev parent reply other threads:[~2018-10-01 7:37 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-01 7:16 [PATCH 0/2] xen: fix two issues in Xen pv qspinlock handling Juergen Gross
2018-10-01 7:16 ` [PATCH 1/2] xen: fix race in xen_qlock_wait() Juergen Gross
2018-10-01 7:37 ` Juergen Gross
2018-10-01 7:37 ` Juergen Gross
2018-10-01 8:54 ` Jan Beulich
2018-10-01 8:54 ` [Xen-devel] " Jan Beulich
2018-10-01 7:16 ` Juergen Gross
2018-10-01 7:16 ` [PATCH 2/2] xen: make xen_qlock_wait() nestable Juergen Gross
2018-10-01 7:16 ` Juergen Gross
2018-10-01 7:38 ` Juergen Gross
2018-10-01 7:38 ` Juergen Gross
2018-10-01 8:57 ` Jan Beulich
2018-10-01 8:57 ` [Xen-devel] " Jan Beulich
[not found] ` <5BB1E18802000078001ED127@suse.com>
2018-10-01 9:03 ` Juergen Gross
2018-10-01 9:18 ` Jan Beulich
2018-10-01 9:18 ` Jan Beulich
2018-10-10 11:53 ` David Woodhouse
2018-10-10 12:30 ` Thomas Gleixner
2018-10-10 12:30 ` Thomas Gleixner
2018-10-10 12:44 ` David Woodhouse
2018-10-10 12:47 ` Thomas Gleixner
2018-10-10 12:47 ` Thomas Gleixner
2018-10-10 13:38 ` Juergen Gross
2018-10-10 13:53 ` David Woodhouse
2018-10-10 13:53 ` David Woodhouse
2018-10-10 13:38 ` Juergen Gross
2018-10-10 12:44 ` David Woodhouse
2018-10-10 11:53 ` David Woodhouse
2018-10-01 7:37 ` Juergen Gross [this message]
2018-10-01 7:37 ` [PATCH 0/2] xen: fix two issues in Xen pv qspinlock handling Juergen Gross
2018-10-09 14:40 ` David Woodhouse
2018-10-09 14:52 ` Juergen Gross
2018-10-09 14:52 ` Juergen Gross
2018-10-09 14:40 ` David Woodhouse
-- strict thread matches above, loose matches on Subject: below --
2018-10-01 7:16 Juergen Gross
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