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Message-ID: <50BDE44F.9070001@kernel.dk> Date: Tue, 04 Dec 2012 12:53:51 +0100 From: Jens Axboe <axboe@...nel.dk> To: Meelis Roos <mroos@...ux.ee> CC: Linux Kernel list <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: Regression in 3.7-rc8: block device size On 2012-12-04 10:40, Meelis Roos wrote: > This is on a couple of different Sun sparc64 machines with pata_ali IDE > controller. These machines work with no warnings in 3.7-rc7 and the same > userspace. On 3.7-rc8, I get warning about trying to access beyond end > of device: > > [ 65.219323] scsi0 : pata_ali > [ 65.258060] scsi1 : pata_ali > [ 65.296641] ata1: PATA max UDMA/66 cmd 0x1fe02010200 ctl 0x1fe02010218 bmdma 0x1fe02010220 irq 12 > [ 65.413331] ata2: PATA max UDMA/66 cmd 0x1fe02010210 ctl 0x1fe02010208 bmdma 0x1fe02010228 irq 12 > [ 66.136974] ata1.00: ATA-7: SAMSUNG SP1213N, TL100-30, max UDMA/100 > [ 66.219314] ata1.00: 234493056 sectors, multi 0: LBA48 > [ 66.647130] ata1.00: configured for UDMA/66 > [ 66.702603] scsi 0:0:0:0: Direct-Access ATA SAMSUNG SP1213N TL10 PQ: 0 ANSI: 5 > [ 66.972381] sd 0:0:0:0: [sda] 234493056 512-byte logical blocks: (120 GB/111 GiB) > [ 67.127131] sd 0:0:0:0: [sda] Write Protect is off > [ 67.190117] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 > [ 67.485709] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA > [ 67.611785] sda: sda1 sda2 sda3 sda4 sda5 > [ 67.668594] sd 0:0:0:0: [sda] Attached SCSI disk > [ 67.734334] EXT4-fs (sda2): couldn't mount as ext3 due to feature incompatibilities > [ 67.835795] EXT4-fs (sda2): couldn't mount as ext2 due to feature incompatibilities > [ 67.964315] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null) > [ 68.065081] VFS: Mounted root (ext4 filesystem) readonly on device 8:2. > [...] > [ 75.320809] attempt to access beyond end of device > [ 75.383861] sda2: rw=0, want=13671320, limit=13671315 > [ 75.450195] Buffer I/O error on device sda2, logical block 1708914 > [ 75.531464] attempt to access beyond end of device > [ 75.594407] sda2: rw=0, want=13671320, limit=13671315 > [ 75.660803] Buffer I/O error on device sda2, logical block 1708914 > [ 75.783562] hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 75.870019] attempt to access beyond end of device > [ 75.933268] sda2: rw=0, want=13671320, limit=13671315 > [ 75.999781] Buffer I/O error on device sda2, logical block 1708914 > [ 77.293658] attempt to access beyond end of device > [ 77.356616] sda2: rw=0, want=13671320, limit=13671315 > [ 77.422961] Buffer I/O error on device sda2, logical block 1708914 > [ 77.504996] attempt to access beyond end of device > [ 77.567930] sda2: rw=0, want=13671320, limit=13671315 > [ 77.634301] Buffer I/O error on device sda2, logical block 1708914 > [ 77.860569] Adding 2996112k swap on /dev/sda4. Priority:-1 extents:1 across:2996112k > [ 78.074418] EXT4-fs (sda2): re-mounted. Opts: (null) > [ 78.230229] attempt to access beyond end of device > [ 78.308838] sda2: rw=0, want=13671320, limit=13671315 > [ 78.388768] Buffer I/O error on device sda2, logical block 1708914 > [ 78.470746] attempt to access beyond end of device > [ 78.533750] sda2: rw=0, want=13671320, limit=13671315 > [ 78.600115] Buffer I/O error on device sda2, logical block 1708914 > [ 78.876369] attempt to access beyond end of device > [ 78.939416] sda4: rw=0, want=5992256, limit=5992245 > [ 79.003499] Buffer I/O error on device sda4, logical block 374515 > [ 79.083598] attempt to access beyond end of device > [ 79.146554] sda4: rw=0, want=5992256, limit=5992245 > [ 79.210662] Buffer I/O error on device sda4, logical block 374515 > [ 79.292698] attempt to access beyond end of device > [ 79.355660] sda4: rw=0, want=5992256, limit=5992245 > [ 79.419737] Buffer I/O error on device sda4, logical block 374515 > [ 79.722303] attempt to access beyond end of device > [ 79.801691] sda2: rw=0, want=13671320, limit=13671315 > [ 79.972342] EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro > [ 80.063157] attempt to access beyond end of device > [ 80.131517] sda2: rw=0, want=13671320, limit=13671315 > [ 80.708525] loop: module loaded > [ 81.326513] attempt to access beyond end of device > [ 81.389538] sda2: rw=0, want=13671320, limit=13671315 > [ 81.455878] quiet_error: 2 callbacks suppressed > [ 81.515428] Buffer I/O error on device sda2, logical block 1708914 > [ 81.598819] attempt to access beyond end of device > [ 81.661757] sda2: rw=0, want=13671320, limit=13671315 > [ 81.728126] Buffer I/O error on device sda2, logical block 1708914 > [ 82.284008] attempt to access beyond end of device > [ 82.347038] sda2: rw=0, want=13671320, limit=13671315 > [ 82.413380] Buffer I/O error on device sda2, logical block 1708914 > [ 82.495397] attempt to access beyond end of device > [ 82.558343] sda2: rw=0, want=13671320, limit=13671315 > [ 82.624737] Buffer I/O error on device sda2, logical block 1708914 > [ 84.200365] attempt to access beyond end of device > [ 84.276102] sda4: rw=0, want=5992256, limit=5992245 > [ 84.353729] Buffer I/O error on device sda4, logical block 374515 > [ 84.434697] attempt to access beyond end of device > [ 84.497668] sda4: rw=0, want=5992256, limit=5992245 > [ 84.561752] Buffer I/O error on device sda4, logical block 374515 > [ 84.761591] attempt to access beyond end of device > [ 84.832304] sda2: rw=0, want=13671320, limit=13671315 > [ 84.915381] Buffer I/O error on device sda2, logical block 1708914 > [ 85.015487] attempt to access beyond end of device > [ 85.081636] sda2: rw=0, want=13671320, limit=13671315 > [ 85.147988] Buffer I/O error on device sda2, logical block 1708914 > [ 85.460680] attempt to access beyond end of device > [ 85.523664] sda4: rw=0, want=5992256, limit=5992245 > [ 85.587723] Buffer I/O error on device sda4, logical block 374515 > [ 85.668724] attempt to access beyond end of device > [ 85.731670] sda4: rw=0, want=5992256, limit=5992245 > [ 85.795739] Buffer I/O error on device sda4, logical block 374515 > [ 86.184531] fsck.ext4 (1430) used greatest stack depth: 8 bytes left > [ 87.078019] EXT4-fs (sda1): mounting ext3 file system using the ext4 subsystem > [ 87.186438] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) > [ 87.457451] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null) > [ 87.754566] attempt to access beyond end of device > [ 87.828241] sda4: rw=0, want=5992256, limit=5992245 > [ 87.903798] Buffer I/O error on device sda4, logical block 374515 > [ 87.984630] attempt to access beyond end of device > [ 88.047618] sda4: rw=0, want=5992256, limit=5992245 > [ 88.111711] Buffer I/O error on device sda4, logical block 374515 > [ 88.306119] attempt to access beyond end of device > [ 88.369160] sda2: rw=0, want=13671320, limit=13671315 > [ 88.435490] Buffer I/O error on device sda2, logical block 1708914 > [ 88.520033] attempt to access beyond end of device > [ 88.583073] sda2: rw=0, want=13671320, limit=13671315 > [ 88.649427] Buffer I/O error on device sda2, logical block 1708914 > > > /proc/partitions contains this in bot 3.7-rc7 and 3.7-rc8: > > major minor #blocks name > > 8 0 117246528 sda > 8 1 96390 sda1 > 8 2 6835657 sda2 > 8 3 117242370 sda3 > 8 4 2996122 sda4 > 8 5 107314200 sda5 Most likely Linus' shuffle of code in there. For ease of debugging, can you a bisect of fs/ between rc7 and rc8? Just do; $ git bisect start fs/ $ git bisect good v3.7-rc7 $ git bisect bad v3.7-rc8 should be no more than 3-4 revisions to test. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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