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* [BUG -next] "memcg: charge before adding to swapcache on swapin" broken
@ 2021-03-16 21:08 Heiko Carstens
  2021-03-16 21:21   ` Shakeel Butt
  0 siblings, 1 reply; 20+ messages in thread
From: Heiko Carstens @ 2021-03-16 21:08 UTC (permalink / raw)
  To: Shakeel Butt
  Cc: Andrew Morton, Roman Gushchin, Johannes Weiner, Hugh Dickins,
	Juergen Christ, Christian Borntraeger, Vasily Gorbik, linux-mm,
	linux-next

Hi Shakeel,

your commit 3a9ca1b0ac0f ("memcg: charge before adding to swapcache on
swapin") in linux-next 20210316 appears to cause user process faults /
crashes on s390 like:

User process fault: interruption code 003b ilc:3 in sshd[2aa15280000+df000]
Failing address: 0000000000000000 TEID: 0000000000000800
Fault in primary space mode while using user ASCE.
AS:00000000966b41c7 R3:0000000000000024 
CPU: 0 PID: 401 Comm: sshd Not tainted 5.12.0-rc3-00048-geba7667a8534 #10
Hardware name: IBM 8561 T01 703 (z/VM 7.2.0)
User PSW : 0705000180000000 0000000000000000
           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:1 AS:0 CC:0 PM:0 RI:0 EA:3
User GPRS: 0000000000000000 fffffffffffff000 0000000000000001 000002aa157b88f0
           000002aa157c43c0 0000000000000000 0000000000000000 0000000000000000
           0000000000000000 0000000000000000 0000000000000000 0000000000000000
           0000000000000000 0000000000000000 0000000000000000 0000000000000000
User Code: Bad PSW.

This was bisected using elfutils selftests:

autoreconf -fi
./configure --enable-maintainer-mode --disable-debuginfod
make -j $(nproc)
cd tests
make -j $(nproc) check

^ permalink raw reply	[flat|nested] 20+ messages in thread

end of thread, other threads:[~2021-03-18 15:20 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-16 21:08 [BUG -next] "memcg: charge before adding to swapcache on swapin" broken Heiko Carstens
2021-03-16 21:21 ` Shakeel Butt
2021-03-16 21:21   ` Shakeel Butt
2021-03-17  0:46   ` Heiko Carstens
2021-03-17  8:36     ` Christian Borntraeger
2021-03-17 13:33     ` Shakeel Butt
2021-03-17 13:33       ` Shakeel Butt
2021-03-17 15:26       ` Heiko Carstens
2021-03-17 15:44         ` Shakeel Butt
2021-03-17 15:44           ` Shakeel Butt
2021-03-17 20:44           ` Heiko Carstens
2021-03-17 21:11             ` Heiko Carstens
2021-03-17 21:39               ` Shakeel Butt
2021-03-17 21:39                 ` Shakeel Butt
2021-03-18  0:23                 ` Shakeel Butt
2021-03-18  0:23                   ` Shakeel Butt
2021-03-18  1:30                   ` Minchan Kim
2021-03-18  1:49                     ` Shakeel Butt
2021-03-18  1:49                       ` Shakeel Butt
2021-03-18 15:19                       ` Minchan Kim

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