* Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> [2006-02-28 23:06]: > > Is this driver known to work with 64-bit kernels (specifically: 64-bit > > DMA addresses)? It sounds like that might be the problem. > > The standard ATA IDE hardware supports only 32bit addressing. However if > your I/O mapping logic is correctly implemented for the architecture > that should cause no problems as the buffers will be bounced. Something is definitely broken in the implemention of this architecture. With a 64-bit kernel, my SII PCI card shows DMA errors. With a 32-bit kernel I get some other weird errors. What I managed to do is to add the SII device ID to the generic IDE support. This works but is obviously quite slow... > The SIL680 hardware actually can support 64bit DMA using a private > non-standard PRD format and the data sheet is available if someone > wants to do the work. Probably best to do it for the new libata > driver but its doable for either I just tried the SCSI PATA patch to see if that works. Unfortunately, it doesn't. As I said above, something must be broken in the architecture code of SB1. However, Alan, I think you might be interested in the oops I get anyway because I suspect you may want to fail in a more gracious way. BTW, does anyone have the knowledge and time to see what's broken in the SB1 code? I really need something better than generic IDE support. It's not fun having a quad-core CPU when your box has to wait for IO all the time. :/ Alan, for you: [4294667.296000] Linux version 2.6.16-rc6 (Debian 2.6.15+2.6.16-rc6-0experimental.1) (waldi@xxxxxxxxxx) (gcc version 4.1.0 (Debian 4.1.0-0)) #7 SMP Mon Mar 13 20:45:43 UTC 2006 [4294667.296000] CPU revision is: 01041100 [4294667.296000] FPU revision is: 000f0103 [4294667.296000] swarm setup: M41T81 RTC detected. [4294667.296000] This kernel optimized for board runs with CFE [4294667.296000] Determined physical RAM map: [4294667.296000] memory: 000000000fe91e00 @ 0000000000000000 (usable) [4294667.296000] memory: 000000001ffffe00 @ 0000000080000000 (usable) [4294667.296000] memory: 000000000ffffe00 @ 00000000c0000000 (usable) [4294667.296000] memory: 000000003ffffe00 @ 0000000140000000 (usable) [4294667.296000] Detected 3 available secondary CPU(s) [4294667.296000] Built 1 zonelists [4294667.296000] Kernel command line: root=/dev/hda2 [4294667.296000] Primary instruction cache 32kB, 4-way, linesize 32 bytes. [4294667.296000] Primary data cache 32kB, 4-way, linesize 32 bytes. [4294667.296000] Synthesized TLB refill handler (35 instructions). [4294667.296000] Synthesized TLB load handler fastpath (49 instructions). [4294667.296000] Synthesized TLB store handler fastpath (49 instructions). [4294667.296000] Synthesized TLB modify handler fastpath (48 instructions). [4294667.296000] PID hash table entries: 4096 (order: 12, 131072 bytes) [4294667.313000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [4294667.340000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [4294667.653000] Memory: 1991912k/2095672k available (2374k kernel code, 103144k reserved, 643k data, 208k init, 0k highmem) [4294667.674000] Mount-cache hash table entries: 256 [4294667.676000] Checking for 'wait' instruction... unavailable. [4294667.678000] Checking for the multiply/shift bug... no. [4294667.680000] Checking for the daddi bug... no. [4294667.681000] Checking for the daddiu bug... no. [4294667.683000] CPU revision is: 03041100 [4294667.683000] FPU revision is: 000f0103 [4294667.683000] Primary instruction cache 32kB, 4-way, linesize 32 bytes. [4294667.683000] Primary data cache 32kB, 4-way, linesize 32 bytes. [4294667.683000] Synthesized TLB refill handler (35 instructions). [4294667.703000] CPU revision is: 05041100 [4294667.703000] FPU revision is: 000f0103 [4294667.703000] Primary instruction cache 32kB, 4-way, linesize 32 bytes. [4294667.703000] Primary data cache 32kB, 4-way, linesize 32 bytes. [4294667.703000] Synthesized TLB refill handler (35 instructions). [4294667.723000] CPU revision is: 07041100 [4294667.723000] FPU revision is: 000f0103 [4294667.723000] Primary instruction cache 32kB, 4-way, linesize 32 bytes. [4294667.723000] Primary data cache 32kB, 4-way, linesize 32 bytes. [4294667.723000] Synthesized TLB refill handler (35 instructions). [4294667.743000] Brought up 4 CPUs [4294667.757000] migration_cost=1000 [4294667.762000] NET: Registered protocol family 16 [4294667.765000] SCSI subsystem initialized [4294667.769000] Initializing Cryptographic API [4294667.770000] io scheduler noop registered [4294667.771000] io scheduler anticipatory registered (default) [4294667.773000] io scheduler deadline registered [4294667.774000] io scheduler cfq registered [4294667.787000] Generic RTC Driver v1.07 [4294667.788000] eth0: enabling TCP rcv checksum [4294667.789000] eth0: SiByte Ethernet at 0x10064000, address: 00:02:4C:F5:2C:3C [4294667.790000] eth1: enabling TCP rcv checksum [4294667.791000] eth1: SiByte Ethernet at 0x10065000, address: 00:02:4C:F5:2C:3D [4294667.792000] eth2: enabling TCP rcv checksum [4294667.793000] eth2: SiByte Ethernet at 0x10066000, address: 00:02:4C:F5:2C:3E [4294667.794000] eth3: enabling TCP rcv checksum [4294667.795000] eth3: SiByte Ethernet at 0x10067000, address: 00:02:4C:F5:2C:3F [4294667.797000] sil680: BA5_EN = 1 clock = 00 [4294667.798000] sil680: BA5_EN = 1 clock = 10 [4294667.799000] sil680: 133MHz clock. [4294667.800000] ata1: PATA max UDMA/133 cmd 0x8010 ctl 0x8022 bmdma 0x8000 irq 8 [4294667.802000] ata2: PATA max UDMA/133 cmd 0x8018 ctl 0x8026 bmdma 0x8008 irq 8 [4294667.957000] ata1: dev 0 ATA-6, max UDMA/33, 19932192 sectors: LBA [4294667.958000] ata1: dev 0 configured for UDMA/33 [4294667.959000] scsi0 : pata_sil680 [4294668.114000] ata2: dev 0 ATA-6, max UDMA/66, 19932192 sectors: LBA [4294668.115000] ata2: dev 0 configured for UDMA/33 [4294668.116000] scsi1 : pata_sil680 [4294668.117000] Vendor: ATA Model: SAMSUNG SV1021H Rev: PJ10 [4294668.122000] Type: Direct-Access ANSI SCSI revision: 05 [4294668.124000] Vendor: ATA Model: SAMSUNG SV1021H Rev: PJ10 [4294668.129000] Type: Direct-Access ANSI SCSI revision: 05 [4294668.132000] SCSI device sda: 19932192 512-byte hdwr sectors (10205 MB) [4294668.133000] sda: Write Protect is off [4294668.134000] SCSI device sda: drive cache: write back [4294668.135000] SCSI device sda: 19932192 512-byte hdwr sectors (10205 MB) [4294668.136000] sda: Write Protect is off [4294668.137000] SCSI device sda: drive cache: write back [4294668.138000] sda:DBE physical address: 002c008020 [4294698.139000] Data bus error, epc == ffffffff80293a48, ra == ffffffff8029b4d4 [4294698.139000] Oops[#1]: [4294698.139000] Cpu 0 [4294698.139000] $ 0 : 0000000000000000 0000000014001fe0 00000000000000ff 900000002c008022 [4294698.139000] $ 4 : 900000002c000000 a80000017ff63458 ffffffff80360000 ffffffffffff00fe [4294698.139000] $ 8 : 0000000000000001 ffffffffffffffc0 ffffffff80360000 ffffffff80360000 [4294698.139000] $12 : ffffffff80430000 0000000000001f00 0000000000000000 ffffffff803a0000 [4294698.139000] $16 : a80000017ff63000 a80000017ff63458 a80000017ff63990 a80000017ff21b00 [4294698.139000] $20 : 0000000000000002 0000000014001fe1 0000000000000000 0000000000000000 [4294698.139000] $24 : ffffffff80430000 ffffffff80430000 [4294698.139000] $28 : a800000000504000 a800000000507ea0 0000000000000006 ffffffff8029b4d4 [4294698.139000] Hi : 0000000000000000 [4294698.139000] Lo : 0000000019643e80 [4294698.139000] epc : ffffffff80293a48 ata_altstatus+0x68/0x88 Not tainted [4294698.139000] ra : ffffffff8029b4d4 ata_eng_timeout+0x15c/0x1b0 [4294698.139000] Status: 14001fe2 KX SX UX KERNEL EXL [4294698.139000] Cause : 8080801c [4294698.139000] PrId : 01041100 [4294698.139000] Modules linked in: [4294698.139000] Process scsi_eh_0 (pid: 36, threadinfo=a800000000504000, task=a800000000503968) [4294698.139000] Stack : a80000017ff63000 ffffffff8028ac68 a80000017ff63000 fffffffffffffffc [4294698.139000] 0000000000000000 a800000000507f10 ffffffff8029b954 0000000000000000 [4294698.139000] a80000017ff63000 ffffffff8028ad78 0000000000000003 0000000000000000 [4294698.139000] ffffffff80422100 ffffffff80125a5c a80000009fffbb60 ffffffff803a4000 [4294698.139000] ffffffff80422100 ffffffff80422100 a800000000507f20 0000000000000000 [4294698.139000] a80000017ff63000 ffffffff8028ac68 a80000009fffbb50 fffffffffffffffc [4294698.139000] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [4294698.139000] 0000000000000000 ffffffff8014fe90 ffffffffffffffff ffffffffffffffff [4294698.139000] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [4294698.139000] ffffffff801049b0 0000000000000000 0000000000000000 ffffffff801049a0 [4294698.139000] ... [4294698.139000] Call Trace: [4294698.139000] [<ffffffff8028ac68>] scsi_error_handler+0x0/0xa48 [4294698.139000] [<ffffffff8029b954>] ata_scsi_error+0x24/0x50 [4294698.139000] [<ffffffff8028ad78>] scsi_error_handler+0x110/0xa48 [4294698.139000] [<ffffffff80125a5c>] __wake_up_common+0x7c/0xd8 [4294698.139000] [<ffffffff8028ac68>] scsi_error_handler+0x0/0xa48 [4294698.139000] [<ffffffff8014fe90>] kthread+0xf8/0x160 [4294698.139000] [<ffffffff801049b0>] kernel_thread_helper+0x10/0x18 [4294698.139000] [<ffffffff801049a0>] kernel_thread_helper+0x0/0x18 [4294698.139000] [4294698.139000] [4294698.139000] Code: dc448c50 0064182d 90620000 <03e00008> 304200ff dc8200a0 67bd0010 90430000 03e00008 -- Martin Michlmayr http://www.cyrius.com/
