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[209.85.220.41]) by mx.google.com with SMTPS id j2sor22513328vkd.36.2019.04.17.01.36.07 for (Google Transport Security); Wed, 17 Apr 2019 01:36:07 -0700 (PDT) Received-SPF: pass (google.com: domain of liwan@redhat.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; Authentication-Results: mx.google.com; spf=pass (google.com: domain of liwan@redhat.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=liwan@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com X-Google-Smtp-Source: APXvYqxFKNOLin2z8+f4TeJcA7EBlvvOpYwLzBF7zlkpdodN37BhXVt6/6WOgLrAI3D7UOhoWKQTRFNsumgH/ZWcEbA= X-Received: by 2002:a1f:860c:: with SMTP id i12mr48286196vkd.46.1555490167322; Wed, 17 Apr 2019 01:36:07 -0700 (PDT) MIME-Version: 1.0 From: Li Wang Date: Wed, 17 Apr 2019 16:35:56 +0800 Message-ID: Subject: v5.1-rc5 s390x WARNING To: Mel Gorman , Vlastimil Babka , Minchan Kim Cc: linux-mm Content-Type: multipart/alternative; boundary="000000000000e01d8a0586b5c69d" 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: --000000000000e01d8a0586b5c69d Content-Type: text/plain; charset="UTF-8" Hi there, I catched this warning on v5.1-rc5(s390x). It was trggiered in fork & malloc & memset stress test, but the reproduced rate is very low. I'm working on find a stable reproducer for it. Anyone can have a look first? [ 1422.124060] WARNING: CPU: 0 PID: 9783 at mm/page_alloc.c:3777 __alloc_pages_irect_compact+0x182/0x190 [ 1422.124065] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache sunrpc pkey ghash_s390 prng xts aes_s390 des_s390 des_g eneric sha512_s390 zcrypt_cex4 zcrypt vmur binfmt_misc ip_tables xfs libcrc32c d asd_fba_mod qeth_l2 dasd_eckd_mod dasd_mod qeth qdio lcs ctcm ccwgroup fsm dm_mi rror dm_region_hash dm_log dm_mod [ 1422.124086] CPU: 0 PID: 9783 Comm: copy.sh Kdump: loaded Not tainted 5.1.0-rc 5 #1 [ 1422.124089] Hardware name: IBM 2827 H43 400 (z/VM 6.4.0) [ 1422.124092] Krnl PSW : 0704e00180000000 00000000002779ba (__alloc_pages_direct_compact+0x182/0x190) [ 1422.124096] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI: 0 EA:3 [ 1422.124100] Krnl GPRS: 0000000000000000 000003e00226fc24 000003d081bdf200 000 0000000000001 [ 1422.124103] 000000000027789a 0000000000000000 0000000000000001 000 000000006ee03 [ 1422.124107] 000003e00226fc28 0000000000000cc0 0000000000000240 000 0000000000002 [ 1422.124156] 0000000000400000 0000000000753cb0 000000000027789a 000 003e00226fa28 [ 1422.124163] Krnl Code: 00000000002779ac: e320f0a80002 ltg %r2,168( %r15) [ 1422.124163] 00000000002779b2: a784fff4 brc 8,27799a [ 1422.124163] #00000000002779b6: a7f40001 brc 15,2779b 8 [ 1422.124163] >00000000002779ba: a7290000 lghi %r2,0 [ 1422.124163] 00000000002779be: a7f4fff0 brc 15,27799 e [ 1422.124163] 00000000002779c2: 0707 bcr 0,%r7 [ 1422.124163] 00000000002779c4: 0707 bcr 0,%r7 [ 1422.124163] 00000000002779c6: 0707 bcr 0,%r7 [ 1422.124194] Call Trace: [ 1422.124196] ([<000000000027789a>] __alloc_pages_direct_compact+0x62/0x190) [ 1422.124198] [<0000000000278618>] __alloc_pages_nodemask+0x728/0x1148 [ 1422.124201] [<0000000000126bb2>] crst_table_alloc+0x32/0x68 [ 1422.124203] [<0000000000135888>] mm_init+0x118/0x308 [ 1422.124204] [<0000000000137e60>] copy_process.part.49+0x1820/0x1d90 [ 1422.124205] [<000000000013865c>] _do_fork+0x114/0x3b8 [ 1422.124206] [<0000000000138aa4>] __s390x_sys_clone+0x44/0x58 [ 1422.124210] [<0000000000739a90>] system_call+0x288/0x2a8 [ 1422.124210] Last Breaking-Event-Address: [ 1422.124212] [<00000000002779b6>] __alloc_pages_direct_compact+0x17e/0x190 [ 1422.124213] ---[ end trace 36649eaa36968eaa ]--- -- Regards, Li Wang --000000000000e01d8a0586b5c69d Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 
Hi there,
I catched this warning on v5.1-rc5(s390x). It was trggiered in fork &=
 malloc & memset stress test, but the reproduced rate is very low. I=
9;m working on find a stable reproducer for it. 
Anyone can have a look first?
[ 1422.124060] WARNING: CPU: 0=
 PID: 9783 at mm/page_alloc.c:3777 __alloc_pages_irect_compact+0x182/0x190 =
                                                      =20
[ 1422.124065] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_res=
olver=20
 nfs lockd grace fscache sunrpc pkey ghash_s390 prng xts aes_s390 des_s390 =
des_g=20
eneric sha512_s390 zcrypt_cex4 zcrypt vmur binfmt_misc ip_tables xfs libcrc=
32c d=20
asd_fba_mod qeth_l2 dasd_eckd_mod dasd_mod qeth qdio lcs ctcm ccwgroup fsm =
dm_mi=20
rror dm_region_hash dm_log dm_mod                                          =
     =20
[ 1422.124086] CPU: 0 PID: 9783 Comm: copy.sh Kdump: loaded Not tainted 5.1=
.0-rc 5 #1                                                                 =
           =20
[ 1422.124089] Hardware name: IBM 2827 H43 400 (z/VM 6.4.0)                =
     =20
[ 1422.124092] Krnl PSW : 0704e00180000000 00000000002779ba (__alloc_pages_=
direct_compact+0x182/0x190)                                                =
          =20
[ 1422.124096]            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:=
0 RI: 0 EA:3                                                               =
           =20
[ 1422.124100] Krnl GPRS: 0000000000000000 000003e00226fc24 000003d081bdf20=
0 000 0000000000001                                                        =
           =20
[ 1422.124103]            000000000027789a 0000000000000000 000000000000000=
1 000 000000006ee03                                                        =
           =20
[ 1422.124107]            000003e00226fc28 0000000000000cc0 000000000000024=
0 000 0000000000002                                                        =
           =20
[ 1422.124156]            0000000000400000 0000000000753cb0 000000000027789=
a 000 003e00226fa28                                                        =
           =20
[ 1422.124163] Krnl Code: 00000000002779ac: e320f0a80002        ltg     %r2=
,168( %r15)                                                                =
           =20
[ 1422.124163]            00000000002779b2: a784fff4            brc     8,2=
7799a                                                                      =
           =20
[ 1422.124163]           #00000000002779b6: a7f40001            brc     15,=
2779b 8                                                                    =
           =20
[ 1422.124163]           >00000000002779ba: a7290000            lghi    =
%r2,0   =20
[ 1422.124163]            00000000002779be: a7f4fff0            brc     15,=
27799 e                                                                    =
           =20
[ 1422.124163]            00000000002779c2: 0707                bcr     0,%=
r7   =20
[ 1422.124163]            00000000002779c4: 0707                bcr     0,%=
r7   =20
[ 1422.124163]            00000000002779c6: 0707                bcr     0,%=
r7   =20
[ 1422.124194] Call Trace:                                                 =
     =20
[ 1422.124196] ([<000000000027789a>] __alloc_pages_direct_compact+0x6=
2/0x190)   =20
[ 1422.124198]  [<0000000000278618>] __alloc_pages_nodemask+0x728/0x1=
148        =20
[ 1422.124201]  [<0000000000126bb2>] crst_table_alloc+0x32/0x68      =
           =20
[ 1422.124203]  [<0000000000135888>] mm_init+0x118/0x308             =
           =20
[ 1422.124204]  [<0000000000137e60>] copy_process.part.49+0x1820/0x1d=
90         =20
[ 1422.124205]  [<000000000013865c>] _do_fork+0x114/0x3b8            =
           =20
[ 1422.124206]  [<0000000000138aa4>] __s390x_sys_clone+0x44/0x58     =
           =20
[ 1422.124210]  [<0000000000739a90>] system_call+0x288/0x2a8         =
           =20
[ 1422.124210] Last Breaking-Event-Address:                                =
     =20
[ 1422.124212]  [<00000000002779b6>] __alloc_pages_direct_compact+0x1=
7e/0x190   =20
[ 1422.124213] ---[ end trace 36649eaa36968eaa ]---                        =
--
Regards,
Li Wang
--000000000000e01d8a0586b5c69d--