ext4 IO after a device offline resulting in hard lock up

环境


1,RHEL 7.7-kernel 3.10.0-862.el7.x86_64

2,smartpqi driver

3,Ext4 File System

问题


1,Ext4 IO after a failed device reset and recovery by smartpqi causes a hard lockup scenario

2,From /var/log/messages

Apr 26 12:27:38 machine22 kernel: smartpqi 0000:5c:00.0: resetting scsi 1:1:0:2
..
Apr 26 12:27:40 machine22 kernel: smartpqi 0000:5c:00.0: reset of scsi 1:1:0:2: SUCCESS
Apr 26 12:27:40 machine22 kernel: sd 1:1:0:2: [sdc] Medium access timeout failure. Offlining disk!
Apr 26 12:27:40 machine22 kernel: sd 1:1:0:2: Device offlined - not ready after error recovery
Apr 26 12:27:40 machine22 kernel: sd 1:1:0:2: [sdc] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Apr 26 12:27:40 machine22 kernel: sd 1:1:0:2: [sdc] CDB: Write(10) 2a 00 71 81 86 18 00 00 10 00
Apr 26 12:27:40 machine22 kernel: blk_update_request: I/O error, dev sdc, sector 1904313880
Apr 26 12:27:40 machine22 kernel: Buffer I/O error on dev dm-2, logical block 185609923, lost async page write
Apr 26 12:27:40 machine22 kernel: Buffer I/O error on dev dm-2, logical block 185609924, lost async page write
Apr 26 12:27:40 machine22 kernel: sd 1:1:0:2: rejecting I/O to offline device
....
...
Apr 26 12:27:41 machine22 kernel: Buffer I/O error on device dm-1, logical block 35218633
Apr 26 12:27:41 machine22 kernel: EXT4-fs warning (device dm-1): ext4_end_bio:316: I/O error -5 writing to inode 2621515 (offset 721420288 size 8388608 starting block 35218688)
Apr 26 12:27:41 machine22 kernel: sd 1:1:0:2: rejecting I/O to offline device
Apr 26 12:27:41 machine22 kernel: EXT4-fs warning (device dm-1): ext4_end_bio:316: I/O error -5 writing to inode 2621515 (offset 721420288 size 8388608 starting block 35218752) 

根本原因


解决方案


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