On 2015-09-12, at 6:13 PM, John David Anglin wrote:
> With Linus' tree at head, I got the following boot error today:
>
> scsi 4:0:0:0: Direct-Access HP 73.4G ST373207LW HPC1 PQ: 0 ANSI: 3
> scsi target4:0:0: Beginning Domain Validation
> scsi target4:0:0: Ending Domain Validation
> scsi target4:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
> scsi 4:0:2:0: Direct-Access HP 73.4G ST373207LW HPC1 PQ: 0 ANSI: 3
> scsi target4:0:2: Beginning Domain Validation
> scsi target4:0:2: Ending Domain Validation
> scsi target4:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
> ata3: SATA link down (SStatus 0 SControl 0)
> random: nonblocking pool is initialized
> ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
> ata4.00: ATA-9: ST3000DM001-1ER166, CC25, max UDMA/133
> ata4.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> ata4.00: configured for UDMA/100
> scsi 3:0:0:0: Direct-Access ATA ST3000DM001-1ER1 CC25 PQ: 0 ANSI: 5
> sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
> sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)
> sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)
> sd 4:0:0:0: [sda] Write Protect is off
> sd 4:0:2:0: [sdb] Write Protect is off
> sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
> sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FA
> mptbase: ioc1: Initiating bringup
> sd 3:0:0:0: [sdc] 4096-byte physical blocks
> sd 3:0:0:0: [sdc] Write Protect is off
> sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPA
> sdc: sdc1
> sd 3:0:0:0: [sdc] Attached SCSI disk
> ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
> scsi host5: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=68
> sda: sda1 sda2 sda3 sda4
> sd 4:0:2:0: [sdb] Attached SCSI disk
> sd 4:0:0:0: [sda] Attached SCSI disk
> scsi_id(992): unaligned access to 0x00000000fae5b009 at ip=0x00000000410039a7
> scsi_id(993): unaligned access to 0x00000000fa7b9009 at ip=0x00000000410039a7
> Backtrace:
> [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]
> [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]
> [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]
> [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]
> [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]
> [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]
> [<000000004035cc50>] blk_peek_request+0x1b8/0x298
> [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]
> [<00000000403584ec>] __blk_run_queue+0x4c/0x70
> [<000000004038126c>] cfq_insert_request+0x2dc/0x580
> [<00000000403576ac>] __elv_add_request+0x1b4/0x300
>
>
> Bad Address (null pointer deref?): Code=15 regs=000000007c65d260 (Addr=0000003b)
> CPU: 2 PID: 936 Comm: systemd-udevd Not tainted 4.2.0+ #1
> task: 000000033f98a348 ti: 000000007c65c000 task.ti: 000000007c65c000
>
> YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001111111100001110 Not tainted
> r00-03 000000ff0804ff0e 000000007c65d130 0000000040363660 000000007c65d130
> r04-07 00000000406f18f0 0000000000004000 0000000000000320 0000000000000000
> r08-11 0000000000000000 0000000000000001 0001003b00000000 000000007e650dc0
> r12-15 0000000000001000 0000000000000032 0000000000000004 0000000042d0d780
> r16-19 0000000000000000 000000007e4cf088 0000000000001000 0000000000001000
> r20-23 0000000000000000 000000007c1ce000 0000000000011000 000000004076d900
> r24-27 0002d12b3ff4bb53 cffd2ed4c0000000 000000007e48cb20 00000000406f18f0
> r28-31 0001003b00000000 000000007c65d230 000000007c65d260 0000000000000001
> sr00-03 0000000000019000 0000000000000000 0000000000000000 0000000000019000
> sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
>
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040363668 000000004036366c
> IIR: 0d4010dc ISR: 0000000000010000 IOR: 0000003b00000000
> CPU: 2 CR30: 000000007c65c000 CR31: ffffffffffffffff
> ORIG_R28: 0000000000000000
> IAOQ[0]: blk_rq_map_sg+0x310/0x5d8
> IAOQ[1]: blk_rq_map_sg+0x314/0x5d8
> RP(r2): blk_rq_map_sg+0x308/0x5d8
> Backtrace:
> [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]
> [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]
> [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]
> [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]
> [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]
> [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]
> [<000000004035cc50>] blk_peek_request+0x1b8/0x298
> [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]
> [<00000000403584ec>] __blk_run_queue+0x4c/0x70
> [<000000004038126c>] cfq_insert_request+0x2dc/0x580
> [<00000000403576ac>] __elv_add_request+0x1b4/0x300
>
> Kernel panic - not syncing: Bad Address (null pointer deref?)
It appears the unaligned accesses were present before but didn't cause a panic:
ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
scsi 3:0:0:0: Direct-Access ATA ST3000DM001-1ER1 CC25 PQ: 0 ANSI: 5
sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
sd 3:0:0:0: [sdc] 4096-byte physical blocks
sd 3:0:0:0: [sdc] Write Protect is off
sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPA
sdc: sdc1
sd 3:0:0:0: [sdc] Attached SCSI disk
scsi host5: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=68
sd 4:0:2:0: [sdb] Spinning up disk...
sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)
sd 4:0:0:0: [sda] Write Protect is off
sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
.
sda: sda1 sda2 sda3 sda4
sd 4:0:0:0: [sda] Attached SCSI disk
...
scsi_id(938): unaligned access to 0x00000000faed4009 at ip=0x00000000410038df
.....ready
sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)
sd 4:0:2:0: [sdb] Write Protect is off
sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FA
sd 4:0:2:0: [sdb] Attached SCSI disk
scsi_id(942): unaligned access to 0x00000000fae77009 at ip=0x00000000410038df
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
Begin: Checking root file system ... fsck from util-linux 2.26.2
ROOT: clean, 128634/4341760 files, 3291642/17343502 blocks
done.
kjournald starting. Commit interval 5 seconds
EXT3-fs (sda4): mounted filesystem with writeback data mode
done.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... done.
INIT: version 2.88 booting
[info] Using makefile-style concurrent boot in runlevel S.
[....] Starting the hotplug events dispatcher: systemd-udevdstarting version 226
. ok
[....] Synthesizing the initial hotplug events...done.
[....] Waiting for /dev to be fully populated...sd 4:0:0:0: Attached scsi gener0
sd 4:0:2:0: Attached scsi generic sg1 type 0
sd 3:0:0:0: Attached scsi generic sg2 type 0
scsi_id(1192): unaligned access to 0x00000000faeeb009 at ip=0x00000000410039a7
scsi_id(1193): unaligned access to 0x00000000faa1f009 at ip=0x00000000410039a7
The above is with 4.0.8+.
Dave
--
John David Anglin dave.anglin@xxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
