From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Thu, 26 Apr 2018 09:33:14 +0100 Subject: [bug report] locking/qrwlock, arm64: Move rwlock implementation over to qrwlocks causes CPU crashes/stalls when killing java processes In-Reply-To: References: <20180412172456.GA27033@arm.com> Message-ID: <20180426083313.GF27583@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Apr 13, 2018 at 08:32:24PM -0700, Tai Tri Nguyen wrote: > I tried to remove wfe from cmpwait and still could reproduce the issue. Hmm, then I'm afraid I'm not sure what else to suggest. You've obviously got a lot of contention on the tasklist_lock on the exit path, but I can't say why it's acting so slowly. If you get more information, please share it! Will