From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugme-daemon@bugzilla.kernel.org
Subject: [Bug 11735] delkin_cb fails after resume
Date: Fri, 10 Oct 2008 17:20:51 -0700 (PDT)
Message-ID: <20081011002051.E0BF3108047@picon.linux-foundation.org>
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http://bugzilla.kernel.org/show_bug.cgi?id=11735
------- Comment #2 from bumble.bee@xs4all.nl 2008-10-10 17:20 -------
Hi Alan, I'd love to do just that. Maybe if this thing can perform in PIO mode
it won't matter that there's no DMA.
I've built a kernel and initrd for both delkin_cb and pata_ninja32.
# hdparm -t /dev/hde
/dev/hde:
Timing buffered disk reads: 10 MB in 3.35 seconds = 2.98 MB/sec
# hdparm -t /dev/sdb
/dev/sdb:
Timing buffered disk reads: 6 MB in 3.27 seconds = 1.84 MB/sec
The dmesg seems to indicate PIO4:
pccard: CardBus card inserted into slot 0
PCI: 0000:02:00.0 reg 10 io port: [0, 1f]
PCI: 0000:02:00.0 reg 14 32bit mmio: [0, fff]
pata_ninja32 0000:02:00.0: enabling device (0000 -> 0003)
pata_ninja32 0000:02:00.0: PCI INT A -> Link[LNKD] -> GSI 11 (level, low) ->
IRQ 11
pata_ninja32 0000:02:00.0: setting latency timer to 64
scsi2 : pata_ninja32
ata3: PATA max PIO4 irq 11
ata3.00: ATA-0: TRANSCEND, 20070831, max UDMA/66
ata3.00: 31326208 sectors, multi 0: LBA
ata3.00: configured for PIO4
ata3.00: configured for PIO4
ata3: EH complete
scsi 2:0:0:0: Direct-Access ATA TRANSCEND 2007 PQ: 0 ANSI: 5
I'm afraid pata_ninja32 doesn't do much better with suspend.
After resuming, top shows me kacpi_notify using about 50% cpu, kacpid using
~42%, scsi_eh_1 about 0.3% and the rest is in "wa" state. Reads from the disk
still don't return.
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