Quoting Jeff Garzik <jeff@xxxxxxxxxx>: > Subject: [PATCH][RFT] libata AHCI reset speed-up, improvements > > > This patch, diff'd against 2.6.18-git5 (or later), attempts the > following improvements: > > * Speed up reset, by polling rather than unconditionally sleeping > for one seconds. > * Save the Ports-Implemented register across controller resets. > * Verify that AHCI mode was truly enabled. > > I'm quite interested in hearing people's test feedback on this patch. > On my own ICH7 machine, it introduces a "softreset failed" error, but > EH recovers nicely and nonetheless configures everything successfully. > Probably just a slow ATAPI device, but I may have exposed a latent > problem in the driver that was hidden until now by the ssleep(1). Hi Jeff! I tested this patch on my T60 (Intel ICH7) against git 78b656b8bf933101b42409b4492734b23427bfc3 with the same result: during boot, I get scsi0: ahci ata1: port is slow to respond, pls be patient ata1: port failed to respond (30 sec) ata1: soft reset failed (device not ready) ata1: soft reset failed retrying in 5 secs etc after a while everything recovers and seems to work OK afterwards, but still this seems to add about a minute or so to the boot time. I'm not sure how to test whether I get the speedup that you mention. Hope this report helps. -- MST - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
