#12357: AHCI unsupported request opcode
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Reporter: kallisti5 | Owner: nobody
Type: bug | Status: new
Priority: critical | Milestone: R1/beta1
Component: Drivers/Disk | Version: R1/Development
Resolution: | Keywords: ahci
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by mmlr):
As far as I see it, the logic in 5584c22 is simple insufficient. It causes
a hard reset for any COMINIT, not just for unsolicited ones. Device
detection (i.e. setting sctl.det to 1) causes a COMRESET, so if a COMINIT
is received because of that, no hard reset should be done as it is
perfectly expected. Skimming through the AHCI specs there are also other
situations that may solicit a COMINIT, so these should be reviewed as
well.
Generally you could just revert the patches up to the point where you
can't reproduce the problem anymore, which would make things less
theoretical.
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Ticket URL: <https://dev.haiku-os.org/ticket/12357#comment:4>
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