Hello, Zhao, Jens.
Jens Axboe wrote:
On Fri, May 12 2006, zhao, forrest wrote:
On Thu, 2006-05-11 at 12:55 +0200, Jens Axboe wrote:
run dmesg prior to suspending, then it'll be cached and can be run after
resume even if the disk doesn't want to talk to you.
Don't know why the mails with attached files were not sent to mailing
list, so I put them at
http://www.infradead.org/~forrest/suspend-resume-dmesg/
The key is the 0xef timeout, then the device is offlined and you see a
lot of io errors due to that.
Try this:
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index bd14720..f120839 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -4288,6 +4288,7 @@ int ata_device_resume(struct ata_port *a
{
if (ap->flags & ATA_FLAG_SUSPENDED) {
ap->flags &= ~ATA_FLAG_SUSPENDED;
+ mdelay(2000);
ata_set_mode(ap);
}
if (!ata_dev_present(dev))
If Jens' suggestion doesn't work, can you post the same log with the
working kernel? In #upstream, that part of code hasn't changed much, so
I'm curious what makes the other kernel work.
--
tejun
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