Yes, this patch makes sure that the Adapter is shut down correctly, and thus when the kexec driver loads, it does not automatically reset the adapter during initialization. This regression was a result of adding code to the driver to detect if the adapter needed a reset as a result of an unclean shutdown in order to deal with an issue that came up with kdump. Kdump does not issue a clean shutdown. As you see, it was the process of making the driver smarter to find out if it needed to reset the adaptec fw that triggered the problem. As noted before, please be advised to go through SUN channels. Upgrade your Drive(s), SES, Motherboard and Card Firmware to the latest versions; and make sure you are using compatible drives and drive bays to see if this problem dealing with the superfluous reset on your pre-release system goes away. You will be able to trigger this by trying to perform a kdump on the system, OR by reverting this patch and running your kexec test. The superfluous reset has yet to cause an issue with a released card beyond noticing a superfluous Firmware reset as Vivek has pointed out. Sincerely -- Mark Salyzyn From: Yinghai Lu [mailto:yhlu.kernel@xxxxxxxxx] sez: > On 6/1/07, Vivek Goyal <vgoyal@xxxxxxxxxx> wrote: > > Thanks Mark. This does fix the issue of unnecessary reset of aacraid > > adapter over kexec on my machine. > i'm little confused about that. > this patch is some clear shutdown, so even next start will have tight > condition will not try to reset the adapter fw. right Mark? > Maybe the driver could be smart to find out if it need to > reset adaptec fw. > > YH - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
