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Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1r3Bbz-003rZz-1O; Wed, 15 Nov 2023 08:51:03 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 1C7903002BE; Wed, 15 Nov 2023 09:51:03 +0100 (CET) Date: Wed, 15 Nov 2023 09:51:02 +0100 From: Peter Zijlstra To: "Edgecombe, Rick P" Cc: "fweimer@redhat.com" , "xry111@xry111.site" , "andrealmeid@igalia.com" , "linux-api@vger.kernel.org" , "linux-mm@kvack.org" , "libc-alpha@sourceware.org" , "linux-kernel@vger.kernel.org" , "tglx@linutronix.de" , "linux-arch@vger.kernel.org" Subject: Re: Several tst-robust* tests time out with recent Linux kernel Message-ID: <20231115085102.GY3818@noisy.programming.kicks-ass.net> References: <4bda9f2e06512e375e045f9e72edb205104af19c.camel@xry111.site> <20231114153100.GY8262@noisy.programming.kicks-ass.net> <20231114154017.GI4779@noisy.programming.kicks-ass.net> <87ttpowajb.fsf@oldenburg.str.redhat.com> <20231114201402.GA25315@noisy.programming.kicks-ass.net> <822f3a867e5661ce61cea075a00ce04a4e4733f3.camel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <822f3a867e5661ce61cea075a00ce04a4e4733f3.camel@intel.com> X-Rspamd-Queue-Id: 0F36C180002 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: ijj8mzgjnfucbq65hkzd14yoghj814fx X-HE-Tag: 1700038271-666391 X-HE-Meta: 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 scTejHpO DMHBq9nrYkRRhCqwZoCNGRnusMSu+qWOOuPPEByF3e3DoIKHpfAFg1URXj/vehyxZ8C4jXz3bEDu01yD23/R3rfsf78qkqekbRbHUAaHF2ew7Ovpg7yZ26nXbzpYvhHCKrAc2fYL6zyzF7VLkozGcRTgdgkAASp4iYBR7TCKwbGmo6BK2LHMFyVkEG+hP3WePRGPlzzapm4z6ank= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Nov 15, 2023 at 01:11:20AM +0000, Edgecombe, Rick P wrote: > On Tue, 2023-11-14 at 21:14 +0100, Peter Zijlstra wrote: > > Urgh, thanks! > > > > Confirmed, the below cures things. Although I should probably make > > that > > FLAGS_SIZE_32 | FLAGS_SHARED against Linus' tree. > > > > Let me go do a proper patch. > > I saw these fail on the glibc shadow stack branch today, and I also saw > this one failing: > FAIL: nptl/tst-robustpi8 tip/locking/urgent (branch with the fix on) gets me: root@ivb-ep:/usr/local/src/glibc# ./build/nptl/tst-robustpi8 running child verifying locks running child verifying locks running child verifying locks running child verifying locks running child verifying locks root@ivb-ep:/usr/local/src/glibc# Which, to my untrained eye, looks like a pass to me.