On 11/2/21 07:42, Yi Zhang wrote:
Below WARNING was triggered with blktests srp/001 on the latest
linux-block/for-next, and it cannot be reproduced with v5.15, pls help
check it, thanks.
88d2c6ab15f7 (origin/for-next) Merge branch 'for-5.16/block' into for-next
Same warning here with a slightly different stack trace.
It breaks root-fs on zfcp-attached SCSI disks for us, because we run our CI
intentionally with panic_on_warn.
[ 9.031740] ------------[ cut here ]------------
[ 9.031743] WARNING: CPU: 13 PID: 196 at block/blk-mq-sched.c:432 blk_mq_sched_insert_request+0x54/0x178
[ 9.031751] Modules linked in: nft_reject_inet(E) nf_reject_ipv4(E) nf_reject_ipv6(E) nft_reject(E) dm_service_time(E) nft_ct(E) nft_chain_nat(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) ip_set(E) nf_tables(E) nfnetlink(E) sunrpc(E) zfcp(E) scsi_transport_fc(E) dm_multipath(E) scsi_dh_rdac(E) scsi_dh_emc(E) scsi_dh_alua(E) s390_trng(E) vfio_ccw(E) mdev(E) vfio_iommu_type1(E) zcrypt_cex4(E) vfio(E) eadm_sch(E) sch_fq_codel(E) configfs(E) ip_tables(E) x_tables(E) ghash_s390(E) prng(E) aes_s390(E) des_s390(E) libdes(E) sha3_512_s390(E) sha3_256_s390(E) sha512_s390(E) sha256_s390(E) sha1_s390(E) sha_common(E) pkey(E) zcrypt(E) rng_core(E) autofs4(E)
[ 9.031785] CPU: 13 PID: 196 Comm: kworker/13:2 Tainted: G E 5.16.0-20211102.rc0.git0.9febf1194306.300.fc34.s390x+next #1
[ 9.031789] Hardware name: IBM 3906 M04 704 (LPAR)
[ 9.031791] Workqueue: kaluad alua_rtpg_work [scsi_dh_alua]
[ 9.031795] Krnl PSW : 0704e00180000000 000000006558e948 (blk_mq_sched_insert_request+0x58/0x178)
[ 9.031800] 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
[ 9.031803] Krnl GPRS: 0000000000000080 00000000000004c6 00000000ade56000 0000000000000001
[ 9.031806] 0000000000000001 0000000000000000 00000000a2d6a400 0000000084003c00
[ 9.031808] 0000000000000000 0000000000000001 0000000000000001 00000000ade56000
[ 9.031810] 000000008aef0000 000003ff7af59400 000003800e3d7b00 000003800e3d7a90
[ 9.031817] Krnl Code: 000000006558e93c: a71effff chi %r1,-1
000000006558e940: a7840004 brc 8,000000006558e948
#000000006558e944: af000000 mc 0,0
>000000006558e948: 5810b01c l %r1,28(%r11)
000000006558e94c: ec213bbb0055 risbg %r2,%r1,59,187,0
000000006558e952: a7740057 brc 7,000000006558ea00
000000006558e956: 5810b018 l %r1,24(%r11)
000000006558e95a: c01b000000ff nilf %r1,255
[ 9.031833] Call Trace:
[ 9.031835] [<000000006558e948>] blk_mq_sched_insert_request+0x58/0x178
[ 9.031838] [<000000006557effe>] blk_execute_rq+0x56/0xd8
[ 9.031841] [<0000000065768708>] __scsi_execute+0x118/0x240
[ 9.031847] [<000003ff803c3788>] alua_rtpg+0x120/0x8f8 [scsi_dh_alua]
[ 9.031849] [<000003ff803c402c>] alua_rtpg_work+0xcc/0x648 [scsi_dh_alua]
[ 9.031852] [<0000000064f024d2>] process_one_work+0x1fa/0x470
[ 9.031856] [<0000000064f02c74>] worker_thread+0x64/0x498
[ 9.031859] [<0000000064f0a894>] kthread+0x17c/0x188
[ 9.031861] [<0000000064e933c4>] __ret_from_fork+0x3c/0x58
[ 9.031864] [<0000000065a71cea>] ret_from_fork+0xa/0x40
[ 9.031868] Last Breaking-Event-Address:
[ 9.031869] [<000000006557ef72>] blk_execute_rq_nowait+0x82/0x98
[ 9.031871] Kernel panic - not syncing: panic_on_warn set ...
[ 3881.829489] ------------[ cut here ]------------
[ 3881.829493] WARNING: CPU: 1 PID: 1386 at block/blk-mq-sched.c:432
blk_mq_sched_insert_request+0x54/0x178
[ 3881.829504] Modules linked in: ib_srp scsi_transport_srp
target_core_pscsi target_core_file ib_srpt target_core_iblock
target_core_mod rdma_cm iw_cm ib_cm ib_umad scsi_debug rdma_rxe
ib_uverbs ip6_udp_tunnel udp_tunnel null_blk scsi_dh_rdac scsi_dh_emc
scsi_dh_alua dm_multipath ib_core sunrpc qeth_l2 bridge stp llc qeth
qdio ccwgroup vfio_ccw mdev vfio_iommu_type1 vfio zcrypt_cex4 drm fb
fuse font drm_panel_orientation_quirks i2c_core backlight zram
ip_tables xfs crc32_vx_s390 ghash_s390 prng aes_s390 des_s390 libdes
sha512_s390 sha256_s390 sha1_s390 sha_common dasd_eckd_mod dasd_mod
pkey zcrypt
[ 3881.829553] CPU: 1 PID: 1386 Comm: kworker/u128:2 Not tainted 5.15.0+ #3
[ 3881.829556] Hardware name: IBM 2964 N96 400 (z/VM 6.4.0)
[ 3881.829558] Workqueue: events_unbound async_run_entry_fn
[ 3881.829564] Krnl PSW : 0704e00180000000 000000001055afc0
(blk_mq_sched_insert_request+0x58/0x178)
[ 3881.829569] 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
[ 3881.829572] Krnl GPRS: 0000000000000004 000000000000003d
00000000448bf400 0000000000000001
[ 3881.829575] 0000000000000001 0000000000000000
000000004352bc00 000000002e0f3000
[ 3881.829577] 0000000000000000 0000000000000001
0000000000000001 00000000448bf400
[ 3881.829580] 000000001ee72100 000003ff7e82dd00
00000380022f7838 00000380022f77c8
[ 3881.829587] Krnl Code: 000000001055afb4: a71effff chi %r1,-1
000000001055afb8: a7840004 brc 8,000000001055afc0
#000000001055afbc: af000000 mc 0,0
>000000001055afc0: 5810b01c l %r1,28(%r11)
000000001055afc4: ec213bbb0055 risbg %r2,%r1,59,187,0
000000001055afca: a7740057 brc 7,000000001055b078
000000001055afce: 5810b018 l %r1,24(%r11)
000000001055afd2: c01b000000ff nilf %r1,255
[ 3881.829607] Call Trace:
[ 3881.829609] [<000000001055afc0>] blk_mq_sched_insert_request+0x58/0x178
[ 3881.829616] [<000000001054b876>] blk_execute_rq+0x56/0xd8
[ 3881.829620] [<000000001070e3a0>] __scsi_execute+0x110/0x230
[ 3881.829625] [<000000001070e602>] scsi_mode_sense+0x142/0x340
[ 3881.829627] [<000000001071f8ee>] sd_revalidate_disk.isra.0+0x74e/0x2240
[ 3881.829632] [<0000000010721912>] sd_probe+0x312/0x4b0
[ 3881.829634] [<00000000106d4c30>] really_probe+0xd0/0x4b0
[ 3881.829639] [<00000000106d51c0>] driver_probe_device+0x40/0xf0
[ 3881.829642] [<00000000106d58cc>] __device_attach_driver+0xa4/0x128
[ 3881.829645] [<00000000106d1fd0>] bus_for_each_drv+0x88/0xc0
[ 3881.829649] [<00000000106d4130>] __device_attach_async_helper+0x90/0xf0
[ 3881.829652] [<000000000ffb0f46>] async_run_entry_fn+0x4e/0x1b0
[ 3881.829655] [<000000000ffa384a>] process_one_work+0x21a/0x498
[ 3881.829658] [<000000000ffa3ff4>] worker_thread+0x64/0x498
[ 3881.829661] [<000000000ffac8e0>] kthread+0x150/0x160
[ 3881.829665] [<000000000ff37468>] __ret_from_fork+0x40/0x58
[ 3881.829670] [<0000000010a8550a>] ret_from_fork+0xa/0x30
[ 3881.829675] Last Breaking-Event-Address:
[ 3881.829676] [<0000000000000007>] 0x7
[ 3881.829679] ---[ end trace a501db666d088cc7 ]---
--
Mit freundlichen Gruessen / Kind regards
Steffen Maier
Linux on IBM Z and LinuxONE
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