From: "Kenneth R. Crudup" <kenny@panix.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
mceier@gmail.com, Davidlohr Bueso <dave@stgolabs.net>,
kernel test robot <rong.a.chen@intel.com>,
Davidlohr Bueso <dbueso@suse.de>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>,
LKML <linux-kernel@vger.kernel.org>,
lkp@lists.01.org
Subject: Re: [PATCH] x86/pat: Fix off-by-one bugs in interval tree search
Date: Sun, 1 Dec 2019 09:08:50 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.21.1912010906030.2748@hp-x360n> (raw)
In-Reply-To: <20191201144947.GA4167@gmail.com>
On Sun, 1 Dec 2019, Ingo Molnar wrote:
> So it would be nice if everyone who is seeing this bug could test the
> patch below against Linus's latest tree - does it fix the regression?
The patch fixes the issue for me.
> If not then please send the before/after dump of
> /sys/kernel/debug/x86/pat_memtype_list - and even if it works please send
> the dumps so we can double check it all.
I don't have the "before patch" (but could if it is absolutely needed) but
here's the "after patch":
----
PAT memtype list:
write-back @ 0x4c314000-0x4c35f000
write-back @ 0x4c35e000-0x4c35f000
write-back @ 0x4c35e000-0x4c364000
write-back @ 0x4c363000-0x4c366000
write-back @ 0x4c365000-0x4c369000
write-back @ 0x4c368000-0x4c36b000
write-back @ 0x4c36a000-0x4c36e000
write-back @ 0x4c36d000-0x4c36f000
write-back @ 0x4c36e000-0x4c370000
write-back @ 0x4c36f000-0x4c371000
write-back @ 0x4c370000-0x4c372000
write-back @ 0x4c7eb000-0x4c7ec000
write-back @ 0x4c7ec000-0x4c7ef000
write-back @ 0x4c7ec000-0x4c7ed000
write-back @ 0x4c7ef000-0x4c7f0000
write-back @ 0x4c7f0000-0x4c7f1000
write-back @ 0x4c867000-0x4c868000
write-back @ 0x4c868000-0x4c869000
write-back @ 0x4fa86000-0x4fa87000
write-back @ 0x4fefc000-0x4fefd000
uncached-minus @ 0x77f00000-0x77f10000
uncached-minus @ 0x8e000000-0x8e040000
uncached-minus @ 0x8e040000-0x8e041000
uncached-minus @ 0x8e200000-0x8e202000
uncached-minus @ 0x8e203000-0x8e204000
uncached-minus @ 0x8e300000-0x8e301000
uncached-minus @ 0xe0000000-0xf0000000
uncached-minus @ 0xfd6a0000-0xfd6a1000
uncached-minus @ 0xfd6a0000-0xfd6b0000
uncached-minus @ 0xfd6d0000-0xfd6e0000
uncached-minus @ 0xfd6e0000-0xfd6e1000
uncached-minus @ 0xfd6e0000-0xfd6f0000
uncached-minus @ 0xfe000000-0xfe002000
uncached-minus @ 0xfe001000-0xfe002000
uncached-minus @ 0xfed00000-0xfed01000
uncached-minus @ 0xfed10000-0xfed16000
uncached-minus @ 0xfed15000-0xfed16000
uncached-minus @ 0xfed40000-0xfed45000
uncached-minus @ 0xfed90000-0xfed91000
uncached-minus @ 0xfed91000-0xfed92000
uncached-minus @ 0xff340000-0xff341000
write-combining @ 0x4000000000-0x4010000000
uncached-minus @ 0x4010000000-0x4010001000
uncached-minus @ 0x4010000000-0x4010001000
uncached-minus @ 0x4010000000-0x4010001000
uncached-minus @ 0x4010001000-0x4010002000
uncached-minus @ 0x4010001000-0x4010002000
uncached-minus @ 0x4010001000-0x4010002000
uncached-minus @ 0x604a000000-0x604a200000
write-combining @ 0x604a800000-0x604b000000
uncached-minus @ 0x604b100000-0x604b110000
uncached-minus @ 0x604b110000-0x604b118000
uncached-minus @ 0x604b118000-0x604b11c000
uncached-minus @ 0x604b11c000-0x604b120000
uncached-minus @ 0x604b11e000-0x604b11f000
uncached-minus @ 0x604b122000-0x604b124000
uncached-minus @ 0x604b125000-0x604b126000
uncached-minus @ 0x604b129000-0x604b12a000
----
-Kenny
--
Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Silicon Valley
next prev parent reply other threads:[~2019-12-01 17:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-27 0:53 [x86/mm/pat] 8d04a5f97a: phoronix-test-suite.glmark2.0.score -23.7% regression kernel test robot
2019-11-30 20:23 ` Mariusz Ceier
2019-11-30 21:27 ` Davidlohr Bueso
2019-11-30 22:08 ` Mariusz Ceier
2019-11-30 22:35 ` Linus Torvalds
2019-12-01 10:46 ` Ingo Molnar
2019-12-01 14:49 ` [PATCH] x86/pat: Fix off-by-one bugs in interval tree search Ingo Molnar
2019-12-01 16:09 ` Mariusz Ceier
2019-12-01 19:53 ` Ingo Molnar
2019-12-01 16:42 ` Kenneth R. Crudup
2019-12-01 17:01 ` Davidlohr Bueso
2019-12-01 17:08 ` Kenneth R. Crudup [this message]
2019-12-01 19:55 ` Ingo Molnar
2019-12-01 20:09 ` Kenneth R. Crudup
2019-12-01 20:30 ` Ingo Molnar
2019-12-01 20:04 ` [tip: x86/urgent] x86/mm/pat: " tip-bot2 for Ingo Molnar
2019-12-02 8:31 ` [PATCH] x86/pat: " Rong Chen
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