Re: PROBLEM: sata_sil24 lockups under heavy i/o

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Hello,

Mark Wagner wrote:
[--snip--]
NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out, tx_status 00 status e000.
[--snip--]
hda: DMA timeout error
hda: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hda: status timeout: status=0xd0 { Busy }
ide: failed opcode was: unknown
hdb: DMA disabled
hda: no DRQ after issuing MULTWRITE_EXT
ata3.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen
ata3.00: tag 0 cmd 0x60 Emask 0x4 stat 0x40 err 0x0 (timeout)
ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x6 frozen
ata4.00: tag 0 cmd 0x60 Emask 0x4 stat 0x40 err 0x0 (timeout)
ata4: hard resetting port
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x6 frozen
ata2.00: tag 0 cmd 0x60 Emask 0x4 stat 0x40 err 0x0 (timeout)
ata2: hard resetting port
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x6 frozen
ata1.00: tag 0 cmd 0x60 Emask 0x4 stat 0x40 err 0x0 (timeout)
ata1.00: tag 1 cmd 0x60 Emask 0x4 stat 0x40 err 0x0 (timeout)
[--snip--]
i2c_adapter i2c-0: Transaction error!
i2c_adapter i2c-0: Transaction error!
i2c_adapter i2c-0: Transaction error!

It seems like your system is falling apart. Timeouts are occurring everywhere. Either IRQ routing went wrong or your powersupply is not providing enough power. Adding two more disks to sil24 doesn't change anything about IRQ routing. If the system functioned okay w/ two disks attached to sil24, give your system a better power supply or rewire power cables such that each power lane is more equally loaded.

--
tejun

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