Re: [Bugme-new] [Bug 11185] New: Device/host RESET in SCSI

(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Wed, 30 Jul 2008 23:18:04 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=11185

           Summary: Device/host RESET in SCSI
           Product: Platform Specific/Hardware
           Version: 2.5
     KernelVersion: 2.6.26
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: PPC-64
        AssignedTo: anton@samba.org
        ReportedBy: cijoml@volny.cz


Latest working kernel version: 2.6.25, 2.6.18??? both tested are Debian
distribution kernels
Earliest failing kernel version: unknown
Distribution: Debian stable
Hardware Environment: IBM H70, PPC64 kernel
Software Environment: Debian stable, 2.6.26 self compiled

Why do you describe this regression as a powerpc problem rather than a
scsi one?

(It could be either or both, I'm just wondering...)

Problem Description:

[    3.881326] sym53c8xx 0000:00:0c.0: enabling device (0140 -> 0143)
[    3.959117] sym0: <875> rev 0x4 at pci 0000:00:0c.0 irq 17
[    4.029503] sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
[    4.108967] sym0: SCSI BUS has been reset.
[    4.160753] scsi0 : sym-2.2.3
[    4.200066] sym53c8xx 0000:00:11.0: enabling device (0140 -> 0143)
[    4.278375] sym1: <895> rev 0x1 at pci 0000:00:11.0 irq 19
[    4.349340] sym1: No NVRAM, ID 7, Fast-40, SE, parity checking
[    4.429359] sym1: SCSI BUS has been reset.
[    4.481660] scsi1 : sym-2.2.3
[    4.521351] sym53c8xx 0001:40:0c.0: enabling device (0140 -> 0143)
[    4.600250] sym2: <875> rev 0x3 at pci 0001:40:0c.0 irq 29
[    4.756252] sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
[    4.836739] sym2: SCSI BUS has been reset.
[    4.889450] scsi2 : sym-2.2.3
[    4.929845] st: Version 20080224, fixed bufsize 32768, s/g segs 256
[    5.008868] Driver 'st' needs updating - please use bus_type methods
[    5.089184] Driver 'sd' needs updating - please use bus_type methods
[    5.169000] Driver 'sr' needs updating - please use bus_type methods
[    5.248969] SCSI Media Changer driver v0.25
[    5.303686] Driver 'ch' needs updating - please use bus_type methods
[    5.385159] mice: PS/2 mouse device common for all mice
[    5.454519] TCP cubic registered
[    5.496517] NET: Registered protocol family 17
[    5.553945] registered taskstats version 1
[    5.606960] scsi: waiting for bus probes to complete ...
[   12.689883] scsi 0:0:0:0: ABORT operation started
[   13.057829] scsi 1:0:0:0: ABORT operation started
[   13.401828] scsi 2:0:0:0: ABORT operation started
[   17.745837] scsi 0:0:0:0: ABORT operation timed-out.
[   17.808370] scsi 0:0:0:0: DEVICE RESET operation started
[   18.113823] scsi 1:0:0:0: ABORT operation timed-out.
[   18.176365] scsi 1:0:0:0: DEVICE RESET operation started
[   18.457824] scsi 2:0:0:0: ABORT operation timed-out.
[   18.520280] scsi 2:0:0:0: DEVICE RESET operation started
[   22.873822] scsi 0:0:0:0: DEVICE RESET operation timed-out.
[   22.943527] scsi 0:0:0:0: BUS RESET operation started
[   23.241823] scsi 1:0:0:0: DEVICE RESET operation timed-out.
[   23.311387] scsi 1:0:0:0: BUS RESET operation started
[   23.585824] scsi 2:0:0:0: DEVICE RESET operation timed-out.
[   23.655371] scsi 2:0:0:0: BUS RESET operation started
[   28.005857] scsi 0:0:0:0: BUS RESET operation timed-out.
[   28.072268] scsi 0:0:0:0: HOST RESET operation started
[   28.143373] sym0: SCSI BUS has been reset.
[   28.373822] scsi 1:0:0:0: BUS RESET operation timed-out.
[   28.440183] scsi 1:0:0:0: HOST RESET operation started
[   28.511103] sym1: SCSI BUS has been reset.
[   28.717826] scsi 2:0:0:0: BUS RESET operation timed-out.
[   28.784138] scsi 2:0:0:0: HOST RESET operation started
[   28.854961] sym2: SCSI BUS has been reset.
[   33.193826] scsi 0:0:0:0: HOST RESET operation timed-out.
[   33.261164] scsi 0:0:0:0: Device offlined - not ready after error recovery
[   33.561823] scsi 1:0:0:0: HOST RESET operation timed-out.
[   33.629409] scsi 1:0:0:0: Device offlined - not ready after error recovery
[   33.905841] scsi 2:0:0:0: HOST RESET operation timed-out.
[   33.973557] scsi 2:0:0:0: Device offlined - not ready after error recovery
[   38.845823] scsi 0:0:1:0: ABORT operation started
[   39.213828] scsi 1:0:1:0: ABORT operation started
[   39.469825] scsi 2:0:1:0: ABORT operation started
[   43.901857] scsi 0:0:1:0: ABORT operation timed-out.
[   43.964323] scsi 0:0:1:0: DEVICE RESET operation started
[   44.269822] scsi 1:0:1:0: ABORT operation timed-out.
[   44.332252] scsi 1:0:1:0: DEVICE RESET operation started
[   44.525821] scsi 2:0:1:0: ABORT operation timed-out.
[   44.588275] scsi 2:0:1:0: DEVICE RESET operation started
[   49.029823] scsi 0:0:1:0: DEVICE RESET operation timed-out.
[   49.099525] scsi 0:0:1:0: BUS RESET operation started
[   49.397822] scsi 1:0:1:0: DEVICE RESET operation timed-out.
[   49.467597] scsi 1:0:1:0: BUS RESET operation started
[   49.653820] scsi 2:0:1:0: DEVICE RESET operation timed-out.
[   49.723526] scsi 2:0:1:0: BUS RESET operation started
[   54.161858] scsi 0:0:1:0: BUS RESET operation timed-out.
[   54.228409] scsi 0:0:1:0: HOST RESET operation started
[   54.299580] sym0: SCSI BUS has been reset.
[   54.529821] scsi 1:0:1:0: BUS RESET operation timed-out.
[   54.596347] scsi 1:0:1:0: HOST RESET operation started
[   54.667436] sym1: SCSI BUS has been reset.
[   54.785819] scsi 2:0:1:0: BUS RESET operation timed-out.
[   54.852267] scsi 2:0:1:0: HOST RESET operation started
[   54.922982] sym2: SCSI BUS has been reset.
[   59.349828] scsi 0:0:1:0: HOST RESET operation timed-out.
[   59.417183] scsi 0:0:1:0: Device offlined - not ready after error recovery
[   59.717822] scsi 1:0:1:0: HOST RESET operation timed-out.
[   59.785439] scsi 1:0:1:0: Device offlined - not ready after error recovery
[   59.973820] scsi 2:0:1:0: HOST RESET operation timed-out.
[   60.041448] scsi 2:0:1:0: Device offlined - not ready after error recovery
[   65.001825] scsi 0:0:2:0: ABORT operation started
[   65.369821] scsi 1:0:2:0: ABORT operation started
[   65.625824] scsi 2:0:2:0: ABORT operation started
[   70.057856] scsi 0:0:2:0: ABORT operation timed-out.
[   70.120341] scsi 0:0:2:0: DEVICE RESET operation started
[   70.425820] scsi 1:0:2:0: ABORT operation timed-out.
[   70.488251] scsi 1:0:2:0: DEVICE RESET operation started
[   70.681820] scsi 2:0:2:0: ABORT operation timed-out.
[   70.744266] scsi 2:0:2:0: DEVICE RESET operation started
[   75.185827] scsi 0:0:2:0: DEVICE RESET operation timed-out.
[   75.255546] scsi 0:0:2:0: BUS RESET operation started
[   75.553822] scsi 1:0:2:0: DEVICE RESET operation timed-out.
[   75.623581] scsi 1:0:2:0: BUS RESET operation started
[   75.809837] scsi 2:0:2:0: DEVICE RESET operation timed-out.
[   75.879524] scsi 2:0:2:0: BUS RESET operation started
[   80.317876] scsi 0:0:2:0: BUS RESET operation timed-out.
[   80.384393] scsi 0:0:2:0: HOST RESET operation started
[   80.455478] sym0: SCSI BUS has been reset.
[   80.685820] scsi 1:0:2:0: BUS RESET operation timed-out.
[   80.752306] scsi 1:0:2:0: HOST RESET operation started
[   80.823332] sym1: SCSI BUS has been reset.
[   80.941820] scsi 2:0:2:0: BUS RESET operation timed-out.
[   81.008217] scsi 2:0:2:0: HOST RESET operation started
[   81.079035] sym2: SCSI BUS has been reset.
[   85.505820] scsi 0:0:2:0: HOST RESET operation timed-out.
[   85.573175] scsi 0:0:2:0: Device offlined - not ready after error recovery
[   85.873839] scsi 1:0:2:0: HOST RESET operation timed-out.
[   85.941331] scsi 1:0:2:0: Device offlined - not ready after error recovery
[   86.129819] scsi 2:0:2:0: HOST RESET operation timed-out.
[   86.197497] scsi 2:0:2:0: Device offlined - not ready after error recovery
[   91.157827] scsi 0:0:3:0: ABORT operation started
[   91.525844] scsi 1:0:3:0: ABORT operation started
[   91.781824] scsi 2:0:3:0: ABORT operation started
[   96.213848] scsi 0:0:3:0: ABORT operation timed-out.
[   96.276335] scsi 0:0:3:0: DEVICE RESET operation started
[   96.581820] scsi 1:0:3:0: ABORT operation timed-out.
[   96.644261] scsi 1:0:3:0: DEVICE RESET operation started
[   96.837819] scsi 2:0:3:0: ABORT operation timed-out.
[   96.900213] scsi 2:0:3:0: DEVICE RESET operation started
[  101.341843] scsi 0:0:3:0: DEVICE RESET operation timed-out.
[  101.411555] scsi 0:0:3:0: BUS RESET operation started
[  101.709820] scsi 1:0:3:0: DEVICE RESET operation timed-out.
[  101.779494] scsi 1:0:3:0: BUS RESET operation started
[  101.965819] scsi 2:0:3:0: DEVICE RESET operation timed-out.
[  102.035530] scsi 2:0:3:0: BUS RESET operation started
[  106.473854] scsi 0:0:3:0: BUS RESET operation timed-out.
[  106.540347] scsi 0:0:3:0: HOST RESET operation started
[  106.611496] sym0: SCSI BUS has been reset.
[  106.841818] scsi 1:0:3:0: BUS RESET operation timed-out.
[  106.908266] scsi 1:0:3:0: HOST RESET operation started
[  106.979253] sym1: SCSI BUS has been reset.
[  107.097818] scsi 2:0:3:0: BUS RESET operation timed-out.
[  107.164208] scsi 2:0:3:0: HOST RESET operation started
[  107.234919] sym2: SCSI BUS has been reset.
[  111.661848] scsi 0:0:3:0: HOST RESET operation timed-out.
[  111.729202] scsi 0:0:3:0: Device offlined - not ready after error recovery
[  112.029820] scsi 1:0:3:0: HOST RESET operation timed-out.
[  112.097359] scsi 1:0:3:0: Device offlined - not ready after error recovery
[  112.285818] scsi 2:0:3:0: HOST RESET operation timed-out.
[  112.353503] scsi 2:0:3:0: Device offlined - not ready after error recovery
[  117.313828] scsi 0:0:4:0: ABORT operation started
[  117.681823] scsi 1:0:4:0: ABORT operation started
[  117.937839] scsi 2:0:4:0: ABORT operation started
[  122.369861] scsi 0:0:4:0: ABORT operation timed-out.
[  122.432287] scsi 0:0:4:0: DEVICE RESET operation started
[  122.737819] scsi 1:0:4:0: ABORT operation timed-out.
[  122.800214] scsi 1:0:4:0: DEVICE RESET operation started
[  122.993820] scsi 2:0:4:0: ABORT operation timed-out.
[  123.056273] scsi 2:0:4:0: DEVICE RESET operation started
[  127.497830] scsi 0:0:4:0: DEVICE RESET operation timed-out.
[  127.567586] scsi 0:0:4:0: BUS RESET operation started
[  127.865836] scsi 1:0:4:0: DEVICE RESET operation timed-out.
[  127.935537] scsi 1:0:4:0: BUS RESET operation started
[  128.121818] scsi 2:0:4:0: DEVICE RESET operation timed-out.
[  128.191627] scsi 2:0:4:0: BUS RESET operation started
[  132.629865] scsi 0:0:4:0: BUS RESET operation timed-out.
[  132.696399] scsi 0:0:4:0: HOST RESET operation started
[  132.767554] sym0: SCSI BUS has been reset.
[  132.997819] scsi 1:0:4:0: BUS RESET operation timed-out.
[  133.064328] scsi 1:0:4:0: HOST RESET operation started
[  133.135414] sym1: SCSI BUS has been reset.
[  133.253817] scsi 2:0:4:0: BUS RESET operation timed-out.
[  133.320242] scsi 2:0:4:0: HOST RESET operation started
[  133.390987] sym2: SCSI BUS has been reset.
[  137.817850] scsi 0:0:4:0: HOST RESET operation timed-out.
[  137.885271] scsi 0:0:4:0: Device offlined - not ready after error recovery
[  138.185819] scsi 1:0:4:0: HOST RESET operation timed-out.
[  138.253407] scsi 1:0:4:0: Device offlined - not ready after error recovery
[  138.441818] scsi 2:0:4:0: HOST RESET operation timed-out.
[  138.509454] scsi 2:0:4:0: Device offlined - not ready after error recovery
[  143.469830] scsi 0:0:5:0: ABORT operation started
[  143.837839] scsi 1:0:5:0: ABORT operation started
[  144.093822] scsi 2:0:5:0: ABORT operation started
[  148.525863] scsi 0:0:5:0: ABORT operation timed-out.
[  148.588334] scsi 0:0:5:0: DEVICE RESET operation started
[  148.893821] scsi 1:0:5:0: ABORT operation timed-out.
[  148.956234] scsi 1:0:5:0: DEVICE RESET operation started
[  149.149817] scsi 2:0:5:0: ABORT operation timed-out.
[  149.212295] scsi 2:0:5:0: DEVICE RESET operation started
[  153.653831] scsi 0:0:5:0: DEVICE RESET operation timed-out.
[  153.723629] scsi 0:0:5:0: BUS RESET operation started
[  154.021836] scsi 1:0:5:0: DEVICE RESET operation timed-out.
[  154.091593] scsi 1:0:5:0: BUS RESET operation started
[  154.277817] scsi 2:0:5:0: DEVICE RESET operation timed-out.
[  154.347515] scsi 2:0:5:0: BUS RESET operation started
[  158.785866] scsi 0:0:5:0: BUS RESET operation timed-out.
[  158.852420] scsi 0:0:5:0: HOST RESET operation started
[  158.923602] sym0: SCSI BUS has been reset.
[  159.153819] scsi 1:0:5:0: BUS RESET operation timed-out.
[  159.220336] scsi 1:0:5:0: HOST RESET operation started
[  159.291467] sym1: SCSI BUS has been reset.
[  159.409816] scsi 2:0:5:0: BUS RESET operation timed-out.
[  159.476196] scsi 2:0:5:0: HOST RESET operation started
[  159.546998] sym2: SCSI BUS has been reset.
[  163.973852] scsi 0:0:5:0: HOST RESET operation timed-out.
[  164.041152] scsi 0:0:5:0: Device offlined - not ready after error recovery
[  164.341818] scsi 1:0:5:0: HOST RESET operation timed-out.
[  164.409398] scsi 1:0:5:0: Device offlined - not ready after error recovery
[  164.597817] scsi 2:0:5:0: HOST RESET operation timed-out.
[  164.665478] scsi 2:0:5:0: Device offlined - not ready after error recovery
[  169.625832] scsi 0:0:6:0: ABORT operation started
[  169.993842] scsi 1:0:6:0: ABORT operation started
[  170.249820] scsi 2:0:6:0: ABORT operation started
[  174.681864] scsi 0:0:6:0: ABORT operation timed-out.
[  174.744345] scsi 0:0:6:0: DEVICE RESET operation started
[  175.049819] scsi 1:0:6:0: ABORT operation timed-out.
[  175.112276] scsi 1:0:6:0: DEVICE RESET operation started
[  175.305816] scsi 2:0:6:0: ABORT operation timed-out.
[  175.368234] scsi 2:0:6:0: DEVICE RESET operation started
[  179.809848] scsi 0:0:6:0: DEVICE RESET operation timed-out.
[  179.879566] scsi 0:0:6:0: BUS RESET operation started
[  180.177820] scsi 1:0:6:0: DEVICE RESET operation timed-out.
[  180.247619] scsi 1:0:6:0: BUS RESET operation started
[  180.433833] scsi 2:0:6:0: DEVICE RESET operation timed-out.
[  180.503503] scsi 2:0:6:0: BUS RESET operation started
[  184.941817] scsi 0:0:6:0: BUS RESET operation timed-out.
[  185.008334] scsi 0:0:6:0: HOST RESET operation started
[  185.079490] sym0: SCSI BUS has been reset.
[  185.309817] scsi 1:0:6:0: BUS RESET operation timed-out.
[  185.376387] scsi 1:0:6:0: HOST RESET operation started
[  185.447443] sym1: SCSI BUS has been reset.
[  185.565816] scsi 2:0:6:0: BUS RESET operation timed-out.
[  185.632200] scsi 2:0:6:0: HOST RESET operation started
[  185.703010] sym2: SCSI BUS has been reset.
[  190.129853] scsi 0:0:6:0: HOST RESET operation timed-out.
[  190.197192] scsi 0:0:6:0: Device offlined - not ready after error recovery
[  190.497836] scsi 1:0:6:0: HOST RESET operation timed-out.
[  190.565325] scsi 1:0:6:0: Device offlined - not ready after error recovery
[  190.753820] scsi 2:0:6:0: HOST RESET operation timed-out.
[  190.753842] scsi 2:0:6:0: Device offlined - not ready after error recovery
[  195.781822] scsi 0:0:8:0: ABORT operation started
[  196.149821] scsi 1:0:8:0: ABORT operation started
[  196.253813] scsi 2:0:8:0: ABORT operation started
[  200.837815] scsi 0:0:8:0: ABORT operation timed-out.
[  200.900204] scsi 0:0:8:0: DEVICE RESET operation started
[  201.205818] scsi 1:0:8:0: ABORT operation timed-out.
[  201.268267] scsi 1:0:8:0: DEVICE RESET operation started
[  201.334835] scsi 2:0:8:0: ABORT operation timed-out.
[  201.397227] scsi 2:0:8:0: DEVICE RESET operation started
and so on in neverending loop...

Steps to reproduce:

Boot with 2.6.26

On Wed, 2008-07-30 at 23:24 -0700, Andrew Morton wrote:

(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Wed, 30 Jul 2008 23:18:04 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote:

quoted

http://bugzilla.kernel.org/show_bug.cgi?id=11185

           Summary: Device/host RESET in SCSI
           Product: Platform Specific/Hardware
           Version: 2.5
     KernelVersion: 2.6.26
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: PPC-64
        AssignedTo: anton@samba.org
        ReportedBy: cijoml@volny.cz


Latest working kernel version: 2.6.25, 2.6.18??? both tested are Debian
distribution kernels
Earliest failing kernel version: unknown
Distribution: Debian stable
Hardware Environment: IBM H70, PPC64 kernel
Software Environment: Debian stable, 2.6.26 self compiled

Why do you describe this regression as a powerpc problem rather than a
scsi one?

(It could be either or both, I'm just wondering...)

quoted

Problem Description:

[    3.881326] sym53c8xx 0000:00:0c.0: enabling device (0140 -> 0143)
[    3.959117] sym0: <875> rev 0x4 at pci 0000:00:0c.0 irq 17
[    4.029503] sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
[    4.108967] sym0: SCSI BUS has been reset.
[    4.160753] scsi0 : sym-2.2.3
[    4.200066] sym53c8xx 0000:00:11.0: enabling device (0140 -> 0143)
[    4.278375] sym1: <895> rev 0x1 at pci 0000:00:11.0 irq 19
[    4.349340] sym1: No NVRAM, ID 7, Fast-40, SE, parity checking
[    4.429359] sym1: SCSI BUS has been reset.
[    4.481660] scsi1 : sym-2.2.3
[    4.521351] sym53c8xx 0001:40:0c.0: enabling device (0140 -> 0143)
[    4.600250] sym2: <875> rev 0x3 at pci 0001:40:0c.0 irq 29
[    4.756252] sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
[    4.836739] sym2: SCSI BUS has been reset.
[    4.889450] scsi2 : sym-2.2.3

I don't know much about scsi, but I have a 44P (POWER3) which boots fine:

Linux version 2.6.27-rc1 (benh@grosgo) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu8
...
sym53c8xx 0000:00:0c.0: enabling device (0140 -> 0143)
sym0: <896> rev 0x7 at pci 0000:00:0c.0 irq 17
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
scsi 0:0:1:0: CD-ROM            IBM      CDRM00203        1_05 PQ: 0 ANSI: 2
 target0:0:1: Beginning Domain Validation
 target0:0:1: asynchronous
 target0:0:1: wide asynchronous
 target0:0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:1: Domain Validation skipping write tests
 target0:0:1: Ending Domain Validation
 target0:0:4: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
scsi 0:0:4:0: Direct-Access     IBM      DDYS-T09170N     S96F PQ: 0 ANSI: 3
 target0:0:4: tagged command queuing enabled, command queue depth 16.
 target0:0:4: Beginning Domain Validation
 target0:0:4: asynchronous
 target0:0:4: wide asynchronous
 target0:0:4: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
 target0:0:4: Domain Validation skipping write tests
 target0:0:4: Ending Domain Validation
 target0:0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
scsi 0:0:5:0: Direct-Access     IBM      DDYS-T09170N     S96F PQ: 0 ANSI: 3
 target0:0:5: tagged command queuing enabled, command queue depth 16.
 target0:0:5: Beginning Domain Validation
 target0:0:5: asynchronous
 target0:0:5: wide asynchronous
 target0:0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
 target0:0:5: Domain Validation skipping write tests
 target0:0:5: Ending Domain Validation
sym53c8xx 0000:00:0c.1: enabling device (0140 -> 0143)
sym1: <896> rev 0x7 at pci 0000:00:0c.1 irq 18
sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
ipr: IBM Power RAID SCSI Device Driver version: 2.4.1 (April 24, 2007)
st: Version 20080504, fixed bufsize 32768, s/g segs 256
Driver 'st' needs updating - please use bus_type methods
Driver 'sd' needs updating - please use bus_type methods
sd 0:0:4:0: [sda] 17774160 512-byte hardware sectors (9100 MB)
sd 0:0:4:0: [sda] Write Protect is off
sd 0:0:4:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DA
sd 0:0:4:0: [sda] 17774160 512-byte hardware sectors (9100 MB)
sd 0:0:4:0: [sda] Write Protect is off
sd 0:0:4:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DA
 sda: sda1
sd 0:0:4:0: [sda] Attached SCSI disk
sd 0:0:5:0: [sdb] Spinning up disk..............ready
sd 0:0:5:0: [sdb] 17774160 512-byte hardware sectors (9100 MB)
sd 0:0:5:0: [sdb] Write Protect is off
sd 0:0:5:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DA
sd 0:0:5:0: [sdb] 17774160 512-byte hardware sectors (9100 MB)
sd 0:0:5:0: [sdb] Write Protect is off
sd 0:0:5:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DA
 sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
sd 0:0:5:0: [sdb] Attached SCSI disk
Driver 'sr' needs updating - please use bus_type methods
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
sr 0:0:1:0: Attached scsi generic sg0 type 5
sd 0:0:4:0: Attached scsi generic sg1 type 0
sd 0:0:5:0: Attached scsi generic sg2 type 0


cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

On Wed, Jul 30, 2008 at 11:24:09PM -0700, Andrew Morton wrote:

Why do you describe this regression as a powerpc problem rather than a
scsi one?

(It could be either or both, I'm just wondering...)

This seems quite astute of the reporter.  The error messages from sym2
are consistent with an interrupt routing problem.  I have an idea for
reporting this more effectively (because this comes up every 3-6 months
or so) but testing that patch will have to wait until I'm back home.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

On Thu, 2008-07-31 at 01:21 -0600, Matthew Wilcox wrote:

On Wed, Jul 30, 2008 at 11:24:09PM -0700, Andrew Morton wrote:

quoted

Why do you describe this regression as a powerpc problem rather than a
scsi one?

(It could be either or both, I'm just wondering...)

This seems quite astute of the reporter.  The error messages from sym2
are consistent with an interrupt routing problem. 

Hmm I suppose.

In that case can we see the full dmesg and a tarball
of /proc/device-tree from a working kernel, Cijoml?

Which begs the question what was the latest working kernel version?

cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person