Hi! I am having problems with linux-sparc and tape drives.
I set up a netra t1 as an amanda backup server, which runs debian sid and kernel 2.6.5-rc3-bk4. 10 others linux boxes are the clients. Minimal fs corruption occurs when the tape is under heavy I/O. The server has attached externally a dell PV-122T tape loader and internally 2 scsi hard drives, the loader and disks in different SCSI busses: <--- BEGIN ---< sym0: <896> rev 0x7 at pci 0000:02:08.0 irq 4,7e0 sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking sym0: SCSI BUS has been reset. scsi0 : sym-2.1.18i Vendor: SEAGATE Model: ST318305LSUN18G Rev: 0340 Type: Direct-Access ANSI SCSI revision: 03 sym0:0:0: tagged command queuing enabled, command queue depth 16. sym0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31) Vendor: FUJITSU Model: MAJ3182M SUN18G Rev: 0804 Type: Direct-Access ANSI SCSI revision: 02 sym0:1:0: tagged command queuing enabled, command queue depth 16. sym1: <896> rev 0x7 at pci 0000:02:08.1 irq 4,7e0 sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking sym1: SCSI BUS has been reset. scsi1 : sym-2.1.18i Vendor: DELL Model: PV-122T Rev: D37r Type: Medium Changer ANSI SCSI revision: 02 Vendor: HP Model: Ultrium 1-SCSI Rev: E32K Type: Sequential-Access ANSI SCSI revision: 03 sym1:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 15) st: Version 20040318, fixed bufsize 32768, s/g segs 256 Attached scsi tape st0 at scsi1, channel 0, id 6, lun 0 st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 98140 SCSI device sda: 35378533 512-byte hdwr sectors (18114 MB) SCSI device sda: drive cache: write through sda: sda1 sda2 sda3 Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 sym0:1: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31) SCSI device sdb: 35378533 512-byte hdwr sectors (18114 MB) SCSI device sdb: drive cache: write through sdb: sdb1 sdb2 sdb3 Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0 Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0 Attached scsi generic sg1 at scsi0, channel 0, id 1, lun 0, type 0 Attached scsi generic sg2 at scsi1, channel 0, id 5, lun 0, type 8 Attached scsi generic sg3 at scsi1, channel 0, id 6, lun 0, type 1 >--- END ---> Everything works as expected until the tape drive at /dev/nst0 is under fire, when heavy tape I/O occurs I get the following errors, which I have never seen before without the tape loader: <--- BEGIN ---< SABRE0: PCI SERR signal asserted. SABRE0: PCI bus error, PCI_STATUS[2aa0] SABRE0: Uncorrectable Error, primary error type[DMA Write:Translation Error] SABRE0: bytemask[00ff] dword_offset[6] was_block(0) SABRE0: UE AFAR [000000002f28b530] SABRE0: UE Secondary errors [(DMA Write)(Translation Error)] SABRE0: IOMMU Error, type[Invalid Error] SABRE0: IOMMU TAG(8)[RAW(0000000000c616a6)error(Invalid Error)wr(0)sz(8K)vpg(c2d4c000)] SABRE0: IOMMU DATA(8)[RAW(000000006fe00000)valid(1)used(1)cache(0)ppg(0000000000000000) SABRE0: PCI SERR signal asserted. SABRE0: PCI bus error, PCI_STATUS[0aa0] SABRE0: PCI SERR signal asserted. SABRE0: PCI bus error, PCI_STATUS[0aa0] < 2 next lines repetitive... > SABRE0: PCI SERR signal asserted. SABRE0: PCI bus error, PCI_STATUS[0aa0] >--- END ---> Then fs errors occurs and debian mount the fs as read-only, a reboot and fsck.ext3 fixes the problem. -otto
