3Ware SATA RAID inaccessible with 2.6.12-mm2:
==================================================
Jun 26 11:49:51 nikolas kernel: 3ware Storage Controller device driver for Linux v1.26.02.001.
Jun 26 11:49:51 nikolas kernel: PCI: Found IRQ 9 for device 0000:00:0f.0
Jun 26 11:49:51 nikolas kernel: IRQ routing conflict for 0000:00:0f.0, have irq 5, want irq 9
Jun 26 11:49:51 nikolas kernel: scsi0 : 3ware Storage Controller
Jun 26 11:49:51 nikolas kernel: 3w-xxxx: scsi0: Found a 3ware Storage Controller at 0xa400, IRQ: 5.
Jun 26 11:49:51 nikolas kernel: Vendor: Model: Rev:
Jun 26 11:49:51 nikolas kernel: Type: Direct-Access ANSI SCSI revision: 00
Jun 26 11:49:51 nikolas kernel: sda : sector size 0 reported, assuming 512.
Jun 26 11:49:51 nikolas kernel: SCSI device sda: 1 512-byte hdwr sectors (0 MB)
Jun 26 11:49:51 nikolas kernel: sda: asking for cache data failed
Jun 26 11:49:51 nikolas kernel: sda: assuming drive cache: write through
Jun 26 11:49:51 nikolas kernel: sda : sector size 0 reported, assuming 512.
Jun 26 11:49:51 nikolas kernel: SCSI device sda: 1 512-byte hdwr sectors (0 MB)
Jun 26 11:49:51 nikolas kernel: sda: asking for cache data failed
Jun 26 11:49:51 nikolas kernel: sda: assuming drive cache: write through
Jun 26 11:49:51 nikolas kernel: sda: sda1 sda2 sda3
Jun 26 11:49:51 nikolas kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
..........
Jun 26 11:49:51 nikolas kernel: ReiserFS: sda2: warning: sh-2006: read_super_block: bread failed (dev sda2, block 2, size 4096)
Jun 26 11:49:51 nikolas kernel: ReiserFS: sda2: warning: sh-2006: read_super_block: bread failed (dev sda2, block 16, size 4096)
Jun 26 11:49:51 nikolas kernel: ReiserFS: sda2: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on sda2
Jun 26 11:49:51 nikolas kernel: ReiserFS: sda3: warning: sh-2006: read_super_block: bread failed (dev sda3, block 2, size 4096)
Jun 26 11:49:51 nikolas kernel: ReiserFS: sda3: warning: sh-2006: read_super_block: bread failed (dev sda3, block 16, size 4096)
Jun 26 11:49:51 nikolas kernel: ReiserFS: sda3: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on sda3
==================================================
2.6.12-mm1 works just fine:
==================================================
Jun 26 11:59:07 nikolas kernel: 3ware Storage Controller device driver for Linux v1.26.02.001.
Jun 26 11:59:07 nikolas kernel: PCI: Found IRQ 9 for device 0000:00:0f.0
Jun 26 11:59:07 nikolas kernel: IRQ routing conflict for 0000:00:0f.0, have irq 5, want irq 9
Jun 26 11:59:07 nikolas kernel: scsi0 : 3ware Storage Controller
Jun 26 11:59:07 nikolas kernel: 3w-xxxx: scsi0: Found a 3ware Storage Controller at 0xa400, IRQ: 5.
Jun 26 11:59:07 nikolas kernel: Vendor: 3ware Model: Logical Disk 0 Rev: 1.2
Jun 26 11:59:07 nikolas kernel: Type: Direct-Access ANSI SCSI revision: 00
Jun 26 11:59:07 nikolas kernel: SCSI device sda: 488395120 512-byte hdwr sectors (250058 MB)
Jun 26 11:59:07 nikolas kernel: SCSI device sda: drive cache: write back
Jun 26 11:59:07 nikolas kernel: SCSI device sda: 488395120 512-byte hdwr sectors (250058 MB)
Jun 26 11:59:07 nikolas kernel: SCSI device sda: drive cache: write back
Jun 26 11:59:07 nikolas kernel: sda: sda1 sda2 sda3
Jun 26 11:59:07 nikolas kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
..........
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda2: found reiserfs format "3.6" with standard journal
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda2: using ordered data mode
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda2: journal params: device sda2, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda2: checking transaction log (sda2)
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda2: Using r5 hash to sort names
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda3: found reiserfs format "3.6" with standard journal
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda3: using ordered data mode
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda3: journal params: device sda3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda3: checking transaction log (sda3)
Jun 26 11:59:07 nikolas kernel: ReiserFS: sda3: Using r5 hash to sort names
==================================================
reverting git-scsi-block-fix.patch git-scsi-block.patch solves the
problem.
Also, please note that some of the info printed twice:
Jun 26 11:59:07 nikolas kernel: SCSI device sda: 488395120 512-byte hdwr
sectors (250058 MB)
Jun 26 11:59:07 nikolas kernel: SCSI device sda: drive cache: write back
Jun 26 11:59:07 nikolas kernel: SCSI device sda: 488395120 512-byte hdwr
sectors (250058 MB)
Jun 26 11:59:07 nikolas kernel: SCSI device sda: drive cache: write back
This glitch was introduced long time ago, somewhere after 2.6.9-mm1.
I have an archive of all the kernels I've built, so if it'll help I can do
a binary search among them to find when exactly it happend.
--
With best wishes,
Nick Orlov.
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