linux-kernel - Re: filesystem corruption with "scsi: core: Reallocate device's budget map on queue depth change"

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Date:   Wed, 30 Mar 2022 21:41:04 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     John Garry <john.garry@...wei.com>
Cc:     Andrea Righi <andrea.righi@...onical.com>,
        Martin Wilck <martin.wilck@...e.com>,
        Bart Van Assche <bvanassche@....org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: filesystem corruption with "scsi: core: Reallocate device's
 budget map on queue depth change"

On Wed, Mar 30, 2022 at 01:59:43PM +0100, John Garry wrote:
> On 30/03/2022 12:21, Andrea Righi wrote:
> > On Wed, Mar 30, 2022 at 11:38:02AM +0100, John Garry wrote:
> > > On 30/03/2022 11:11, Andrea Righi wrote:
> > > > Hello,
> > > > 
> > > > after this commit I'm experiencing some filesystem corruptions at boot
> > > > on a power9 box with an aacraid controller.
> > > > 
> > > > At the moment I'm running a 5.15.30 kernel; when the filesystem is
> > > > mounted at boot I see the following errors in the console:
> 
> About "scsi: core: Reallocate device's budget map on queue depth change"
> being added to a stable kernel, I am not sure if this was really a fix or
> just a memory optimisation.
> 
> > > > 
> > > > Begin: Will now check root file system ... fsck from util-linux 2.36.1
> > > > [/usr/sbin/fsck.ext4 (1) -- /dev/sda2] fsck.ext4 -a -C0 /dev/sda2
> > > > root: clean, 99646/122101760 files, 11187342/488376336 blocks
> > > > done.
> > > > [    4.636613] sd 0:2:0:0: [sda] tag#257 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.636655] sd 0:2:0:0: [sda] tag#257 CDB: Read(10) 28 00 00 00 4c 10 00 00 08 00
> > > > [    4.636689] blk_update_request: I/O error, dev sda, sector 19472 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.636734] sd 0:2:0:0: [sda] tag#258 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.636772] sd 0:2:0:0: [sda] tag#258 CDB: Read(10) 28 00 00 00 4c 18 00 00 08 00
> > > > [    4.636796] blk_update_request: I/O error, dev sda, sector 19480 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.636840] sd 0:2:0:0: [sda] tag#260 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.636877] sd 0:2:0:0: [sda] tag#260 CDB: Read(10) 28 00 00 00 4c 28 00 00 08 00
> > > > [    4.636901] blk_update_request: I/O error, dev sda, sector 19496 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.636944] sd 0:2:0:0: [sda] tag#259 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.636971] sd 0:2:0:0: [sda] tag#259 CDB: Read(10) 28 00 00 00 4c 20 00 00 08 00
> > > > [    4.637005] blk_update_request: I/O error, dev sda, sector 19488 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.637049] sd 0:2:0:0: [sda] tag#262 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.637085] sd 0:2:0:0: [sda] tag#262 CDB: Read(10) 28 00 00 00 4c 38 00 00 08 00
> > > > [    4.637118] blk_update_request: I/O error, dev sda, sector 19512 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.637161] sd 0:2:0:0: [sda] tag#264 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.637197] sd 0:2:0:0: [sda] tag#264 CDB: Read(10) 28 00 00 00 4c 48 00 00 08 00
> > > > [    4.637221] blk_update_request: I/O error, dev sda, sector 19528 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.637270] sd 0:2:0:0: [sda] tag#284 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.637306] sd 0:2:0:0: [sda] tag#284 CDB: Read(10) 28 00 00 00 4c e8 00 00 08 00
> > > > [    4.637332] blk_update_request: I/O error, dev sda, sector 19688 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.637375] sd 0:2:0:0: [sda] tag#286 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.637411] sd 0:2:0:0: [sda] tag#286 CDB: Read(10) 28 00 00 00 4c f8 00 00 08 00
> > > > [    4.637444] blk_update_request: I/O error, dev sda, sector 19704 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.637481] blk_update_request: I/O error, dev sda, sector 19664 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.637485] sd 0:2:0:0: [sda] tag#282 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.637487] sd 0:2:0:0: [sda] tag#287 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
> > > > [    4.637491] sd 0:2:0:0: [sda] tag#287 CDB: Read(10) 28 00 00 00 4d 00 00 00 08 00
> > > > [    4.637491] sd 0:2:0:0: [sda] tag#282 CDB: Read(10) 28 00 00 00 4c d8 00 00 08 00
> > > > [    4.637494] blk_update_request: I/O error, dev sda, sector 19672 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> > > > [    4.747771] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
> > > > 
> 
> We need to find where that memory corruption is coming from. Maybe the root
> is that too many commands are being sent to the disk. Ming?

Yeah, looks aacraid limits max queue depth as 256, see aac_change_queue_depth().


Thanks, 
Ming