[haiku-bugs] Re: [Haiku] #5162: [PATCH] ahci boot failure
- From: "Grey" <trac@xxxxxxxxxxxx>
- Date: Sat, 20 Feb 2010 11:46:19 -0000
#5162: [PATCH] ahci boot failure
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Reporter: Grey | Owner: marcusoverhagen
Type: enhancement | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Disk | Version: R1/alpha1
Keywords: | Blockedby:
Platform: All | Blocking:
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Comment(by Grey):
Replying to [comment:2 marcusoverhagen]:
> Your proposed patch is no valid solution.
> The initial port reset is required to
> ensure that device signature is readable.
> Your patch removes this reset. But the same
> problem can also be triggered by hotswap of
> sata device.
But the patch solve problem on my notebook. And patch working ok on 4
different computers that I tested. IMHO, it's very strange to reset device
after init.
> We seem to have a problem handling the
> PhyReady Change / Port Connect Change
> interrupts.
Yes, simultaneous interrupts.
> Unfortunately r31014 completely changed
> the reset handling. The device is also no
> longer reset before executing a command
> when a reset request is pending as result
> of an error interrupt.
>
> Does reverting r31014 help?
No. Same problem for haiku-pre-alpha-gcc4-r30935-raw.
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Ticket URL: <http://dev.haiku-os.org/ticket/5162#comment:4>
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