Jens Axboe wrote: >>>>My hardware is SMP Supermicro with 6 disks on >>>>Marvell MV88SX6081 8-port SATA II PCI-X Controller (rev 03) >>>>and the sata_mv.c is version 0.25 dated 22 Oct 2005 >>>> >>>>The thing works with "old" mvsata340 driver, but the "new" kernel with >>>>your driver freezes when it starts to probe disks. Even Magic SysRq >>>>does not work. The last lines I see on screen are like this: >>>> >>>>sata_mv version 0.25 >>>>ACPI: PCI Interrupt 0000:02:03.0[A] -> GSI 56 (level, low) -> IRQ 185 >>>>sata_mv(0000:02:03.0) 32 slots 8 ports unknown mode IRQ via MSI >>>>ata1: SATA max UDMA/133 cmd 0x0 ctl 0xF8C22120 bmdma 0x0 irq 185 >>>>ata2: .... <same things> 0xF8C24120 ... >>>>... >>>>ata8: .... <same thing> 0xF8C38120 ... >>>>ATA: abnormal status 0x80 on port 0xF8C2211C >>>>... <five more lines identical to the above> >>>>ata1: dev 0 ATA-7, max UDMA/133, 781422768 sectors: LBA48 >>>> >>>>- and at this point it freezes hard. >>>>Any suggestions for me? Any information I can collect to help >>>>troubleshooting? >> >>[...] >> >>>In the meantime, try turning off SMP and seeing if that makes a >>>difference. There still might be a problem with the spinlocks and if so >>>it should go away in uniprocessor mode. >> >>'nosmp' makes no difference. > > > Booting with nosmp isn't enough, you need to compile the kernel with > CONFIG_SMP turned off. Otherwise the spinlocks will still be used and > could cause a hard hang. Yeah, that was it! It boots with the kernel compiled for UP. (did not yet have a chance to check how it works). Any chance that somebody competent would fix the driver for SMP? Eugene
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