http://bugzilla.kernel.org/show_bug.cgi?id=5866
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Harddrive doesn't wake up |Harddrive doesn't wake up
|from S3 sleep when using the|from S3 sleep when using the
|amd74xx driver |amd74xx driver
------- Additional Comments From [EMAIL PROTECTED] 2006-03-10 00:23 -------
This is the same problem I'm having with my amd64 laptop with nforce3 chipset --
any ide I/O after resume crash system with funny 'machine check' message.
Workaround 1: do "hdparm -X udma2 /dev/hdc" for cdrom or "hdparm -X udma5
/dev/hda" for hdd just after resume before any I/O and it will work. If hdparm
was not cached system will crash.
Workaround 2: for hdd, one may use this ugly^H^H^H^H bruteforce hack which just
works (TM):
drivers/ide/ide.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux/drivers/ide/ide.c
===================================================================
--- linux.orig/drivers/ide/ide.c
+++ linux/drivers/ide/ide.c
@@ -1250,7 +1250,8 @@ static int generic_ide_resume(struct dev
rqpm.pm_step = ide_pm_state_start_resume;
rqpm.pm_state = PM_EVENT_ON;
- return ide_do_drive_cmd(drive, &rq, ide_head_wait);
+ (void) ide_do_drive_cmd(drive, &rq, ide_head_wait);
+ return set_xfer_rate(drive, XFER_UDMA_5);
}
int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct
block_device *bdev,
Last note: it looks like after resume from S3 memory contents is corrupted, so
system becomes very unstable and oopsing here and there:
Mar 3 14:44:05 foo kernel: [ 2.156532] invalid opcode: 0000 [1] PREEMPT
...
Mar 3 14:44:05 foo kernel: [ 2.156667] Pid: 2672, comm: modprobe Not tainted
2.6.16-rc4-ck1-ssb1 #14
Mar 3 14:44:05 foo kernel: [ 2.156675] RIP: 0010:[_end+129462400/2131570688]
<ffffffff880a4080>{:ohci_hcd:ohci_run+224}
or:
Feb 18 18:01:48 foo kernel: [ 59.367074] Eeek! page_mapcount(page) went
negative! (-1)
Feb 18 18:01:48 foo kernel: [ 59.367078] page->flags = 414
Feb 18 18:01:48 foo kernel: [ 59.367080] page->count = 1
Feb 18 18:01:48 foo kernel: [ 59.367081] page->mapping = 0000000000000000
Feb 18 18:01:48 foo kernel: [ 59.367099] ----------- [cut here ] ---------
[please bite here ] ---------
Feb 18 18:01:48 foo kernel: [ 59.367102] Kernel BUG at mm/rmap.c:555
Feb 18 18:01:48 foo kernel: [ 59.367104] invalid opcode: 0000 [1] PREEMPT
...
Feb 18 18:01:48 foo kernel: [ 59.367131] Pid: 2243, comm: pdksh Not tainted
2.6.16-rc3-ck1-ssb2 #13
Feb 18 18:01:48 foo kernel: [ 59.367134] RIP: 0010:[page_remove_rmap+120/160]
<ffffffff80163bf8>{page_remove_rmap+120}
and more in this spirit.
workaround for this is to drop caches just before suspend (on 2.6.16-* kernels):
echo 3 > /proc/sys/vm/drop_caches
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