Re: [2/6] 2.6.21-rc2: known regressions
Ingo Molnar <[email protected]>
| Newsgroups | gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.acpi.devel,gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
* Linus Torvalds <[email protected]> wrote: > > 2. First disk access after resume takes a couple of minutes > > (seemed instant with 2.6.20) during this time no new messages > > show on console > > Yeah, there is some problem with SATA resume. It would be beautiful if > the people who actually see this could narrow it down with bisection. > "It works for me" is clearly the case for many people, but not all. Thomas found a new twist to this today: applying the patch below (which turns on ATA_DEBUG) made the SATA problem go away on his laptop. Michael, could you try this patch, does it change the behavior of your laptop in any way? Ingo --- include/linux/libata.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux/include/linux/libata.h =================================================================== --- linux.orig/include/linux/libata.h +++ linux/include/linux/libata.h @@ -51,7 +51,7 @@ * compile-time options: to be removed as soon as all the drivers are * converted to the new debugging mechanism */ -#undef ATA_DEBUG /* debugging output */ +#define ATA_DEBUG 1 /* debugging output */ #undef ATA_VERBOSE_DEBUG /* yet more debugging output */ #undef ATA_IRQ_TRAP /* define to ack screaming irqs */ #undef ATA_NDEBUG /* define to disable quick runtime checks */