Re: [PATCH 0/5] SATA/ACPI suspend/resume support

[Randy Dunlap <randy_d_dunlap@linux.intel.com>]

> > > > > > > > I tested kernel 2.6.15-rc7 with your patch applied on my ThinkPad X41.
> > > 
> > > My laptop is ThinkPad X41 Tablet, which has the same SATA controller
> > > as X41.
> > > 
> > > > > > > > While booting, it locks up after printing
> > > > > > > > 
> > > > > > > >     ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0x1810 irq 14
> > > > > > > >     ata1: dev 0 ATA-6, max UDMA/100, 117210240 sectors: LBA
> > > > > > > >     ata1(0): applying bridge limits
> > > > > > > >     ata1: dev 0 configured for UDMA/100
> > > > > > > > 
> > > > > > > > If I select CONFIG_SCSI_SATA_AHCI, then the kernel emits an oops and
> > > > > > > > panics during boot.
> > 
> > This certainly isn't the same failure that Jens saw.
> > 
> > Could there be any informative & helpful messages missing
> > before these messages, e.g., an assert() failure?
> 
> Let me copy as far as I can setting the video mode to 80x60.
> Scrolling back does not work after kernel panic.
> 
> highmem bounce pool size: 64 pages
> Initializing Cryptographic API
> io scheduler noop registered
> io scheduler anticipatory registered
> serio: i8042 AUX port at 0x60,0x64 irq 12
> serio: i8042 KBD port at 0x60,0x64 irq 1
> acpi_bus-0201 [27] bus_set_power         : Device is not power manageable
> ahci: probe of 0000:00:1f.2 failed with error -12
> ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0x1810 irq 14
> ata1: dev 0 ATA-6, max UDMA/100, 117210240 sectors: LBA
> ata1(0): applying bridge limits
> ata1: dev 0 configured for UDMA/100
> do_drive_set_taskfiles: unexpected GTF length (-1040297340)
> scsi0: ata_piix
>   Vendor: ATA       Model: HTC426060G9AT00   Rev: 00P3
>   Type:   Direct-Access                      ANSI SCSI revision: 05
> ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0x1818 irq 15
> ata2: disabling port
> scsi1 : ata_piix
> SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
> SCSI device sda: drive cache: write back
> SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
> SCSI device sda: drive cache: write back
>  sda:<1>Unable to handle kernel NULL pointer dereference at virtual address 00000172

Jae-Hyeon,

If you are up to it, please enable libata verbose debugging
and then boot & cause this bug again and send me as much
output as you can collect.
Patch is below.

Thanks,
---
~Randy


From: Randy Dunlap <randy_d_dunlap@linux.intel.com>

Enable libata verbose debugging output.

Signed-off-by: Randy Dunlap <randy_d_dunlap@linux.intel.com>
---

 include/linux/libata.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff -Naurp linux-2615-work/include/linux/libata.h~debugs linux-2615-work/include/linux/libata.h
--- linux-2615-work/include/linux/libata.h~debugs	2006-01-02 19:21:10.000000000 -0800
+++ linux-2615-work/include/linux/libata.h	2006-01-04 11:40:05.000000000 -0800
@@ -37,8 +37,8 @@
 /*
  * compile-time options
  */
-#undef ATA_DEBUG		/* debugging output */
-#undef ATA_VERBOSE_DEBUG	/* yet more debugging output */
+#define ATA_DEBUG		/* debugging output */
+#define 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 */
 #undef ATA_ENABLE_PATA		/* define to enable PATA support in some