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Date:      Wed, 26 Aug 2015 18:47:20 -0500
From:      Graham Allan <allan@physics.umn.edu>
To:        freebsd-scsi@freebsd.org
Subject:   kernel panic on 9.3 with mps reinit
Message-ID:  <55DE5008.7000504@physics.umn.edu>

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I have a biggish zfs file server running 9.3-RELEASE-p19 which has a 
habit of panicking during drive add/remove/scan operations.

We made the mistake of using some "not great" desktop drives for our 
first pool, so there is some turnover of drives through failure. What I 
find is we can generally replace 2-3 drives over a period of some 
months, then at some point new drives are no longer recognised, either 
upon insertion or with "camcontrol rescan".

Under 9.1, I found that running "sas2ircu 0 DISPLAY" would (after 
waiting for a timeout) reinitialize the mps controller, the drives would 
be found, and we could continue. But on 9.3, the same attempt results in 
a panic.

Attached I have some remotely-received syslog output from a spontaneous 
panic when a drive suffered hardware failure - looks like the same 
pattern, with panic shortly after mps reinit.

This might be somewhat useless as I have never got a crash dump out of 
this system; possibly swap is too much smaller than RAM to get a 
minidump. But if you have any suggestions to debug further I'd welcome them.

The system has four Supermicro SC847-JBOD drive chassis attached to a 
single 9207-8e controller (this used to be one controller per chassis 
but we had other issues with that back on FreeBSD 9.1). It can operate 
under heavy load for months on end so I don't believe cabling problems 
are an issue, it seems mostly related to state after drive loss.

Thanks in advance for any suggestions,

Graham

> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): READ(10). CDB: 28 00 26 0b df 90 00 00 e8 00 length 118784 SMID 772 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): READ(6). CDB: 08 00 02 10 10 00 length 8192 SMID 477 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): READ(16). CDB: 88 00 00 00 00 01 5d 50 9e 10 00 00 00 10 00 00 length 8192 SMID 212 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): READ(16). CDB: 88 00 00 00 00 01 5d 50 a0 10 00 00 00 10 00 00 length 8192 SMID 174 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): READ(10). CDB: 28 00 26 0b de a8 00 00 e8 00
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): SCSI sense: ABORTED COMMAND asc:0,0 (No additional sense information)
> Aug 22 15:16:46 hostname kernel: (da58:mps0:0:87:0): Retrying command (per sense data)
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): READ(10). CDB: 28 00 26 0b de a8 00 00 e8 00 length 118784 SMID 921 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): READ(10). CDB: 28 00 26 0b df 90 00 00 e8 00 length 118784 SMID 877 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): READ(6). CDB: 08 00 02 10 10 00 length 8192 SMID 330 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): READ(16). CDB: 88 00 00 00 00 01 5d 50 a0 10 00 00 00 10 00 00 length 8192 SMID 461 terminated ioc 804b scsi 0 state 0 xfer 0
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): READ(16). CDB: 88 00 00 00 00 01 5d 50 9e 10 00 00 00 10 00 00
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): SCSI sense: ABORTED COMMAND asc:0,0 (No additional sense information)
> Aug 22 15:16:55 hostname kernel: (da58:mps0:0:87:0): Retrying command (per sense data)
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): SCSI sense: ABORTED COMMAND asc:0,0 (No additional sense information)
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): Retrying command (per sense data)
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): Error 5, Retries exhausted
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): READ(10). CDB: 28 00 32 5a d1 c0 00 00 20 00
> Aug 22 18:56:19 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> ... snip ...
> Aug 22 18:56:25 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:25 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:25 hostname kernel: (da58:mps0:0:87:0): Error 5, Retries exhausted
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): Retrying command (per sense data)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): Error 5, Retries exhausted
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): Retrying command (per sense data)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): Error 5, Retries exhausted
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): Retrying command (per sense data)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): CAM status: SCSI Status Error
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI status: Check Condition
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): SCSI sense: HARDWARE FAILURE asc:44,0 (Internal target failure)
> Aug 22 18:56:26 hostname kernel: (da58:mps0:0:87:0): Error 5, Retries exhausted
> Aug 22 18:56:49 hostname kernel: da58 at mps0 bus 0 scbus0 target 87 lun 0
> Aug 22 18:56:49 hostname kernel: da58: <ATA WDC WD30EFRX-68A 0A80> s/n      WD-WCC1T0276990 detached
> Aug 22 18:56:49 hostname kernel: (da58:mps0:0:87:0): Periph destroyed
> Aug 22 18:56:52 hostname kernel: mpssas_get_sata_identify: error reading SATA PASSTHRU; iocstatus = 0x804b
> Aug 22 18:56:53 hostname kernel: mps0: _mapping_add_new_device: failed to add the device with handle 0x00a8 to persistent table because there is no free space available
> Aug 22 18:57:53 hostname kernel: mps0: Calling Reinit from mps_wait_command
> Aug 22 18:57:53 hostname kernel: mps0: Reinitializing controller,
> Aug 22 18:57:54 hostname kernel: mps0: Firmware: 16.00.00.00, Driver: 16.00.00.00-fbsd
> Aug 22 18:57:54 hostname kernel: mps0: IOCCapabilities: 1a85c<ScsiTaskFull,DiagTrace,SnapBuf,EEDP,TransRetry,EventReplay,MSIXIndex,HostDisc>
> Aug 22 18:57:54 hostname kernel: mps0: mps_reinit finished sc 0xffffff8001877000 post 4 free 3
> Aug 22 18:57:54 hostname kernel: mps0: Reinit success
> Aug 22 18:57:54 hostname kernel: mpssas_get_sata_identify: request for page completed with error 60failure at /usr/src/sys/dev/mps/mps_sas_lsi.c:667/mpssas_add_device()! Could not get ID for device with handle 0x00a8
> Aug 22 18:57:54 hostname kernel: mpssas_fw_work: failed to add device with handle 0xa8
> Aug 22 18:57:54 hostname kernel: _mapping_update_missing_count: device is already removed from mapping table
> Aug 22 18:57:56 hostname kernel:
> Aug 22 18:57:56 hostname kernel:
> Aug 22 18:57:56 hostname kernel: Fatal trap 12: page fault while in kernel mode
> Aug 22 18:57:56 hostname kernel: cpuid = 2; apic id = 02
> Aug 22 18:57:56 hostname kernel: fault virtual address#011= 0x0
> Aug 22 18:57:56 hostname kernel: fault code#011#011= supervisor write data, page not present
> Aug 22 18:57:56 hostname kernel: instruction pointer#011= 0x20:0xffffffff805bbc19
> Aug 22 18:57:56 hostname kernel: stack pointer#011        = 0x28:0xffffff905c4dc640
> Aug 22 18:57:56 hostname kernel: frame pointer#011        = 0x28:0xffffff905c4dc650
> Aug 22 18:57:56 hostname kernel: code segment#011#011= base 0x0, limit 0xfffff, type 0x1b
> Aug 22 18:57:56 hostname kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
> Aug 22 18:57:56 hostname kernel: processor eflags#011= interrupt enabled, resume, IOPL = 0
> Aug 22 18:57:56 hostname kernel: current process#011#011= 0 (mps0 taskq)
> Aug 22 18:57:56 hostname kernel: trap number#011#011= 12

-- 



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