Date: Tue, 14 Jun 2011 08:16:56 +0200 From: Rick van der Zwet <info@rickvanderzwet.nl> To: freebsd-current@freebsd.org Subject: ATA_PERIODIC_POLL on ATA_I82801HBM_S1 causes lockups Message-ID: <BANLkTi=xrkBifH3CvECEWKqVk-P8r4DOiw@mail.gmail.com>
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[-- Attachment #1 --] The ICH8M found in the MacBookPro4,1 has an known issue [1] which locks up when enabling the periodic poll using sidpr (introduced a ``little'' while ago in r214016), making it impossible to boot. Attached patch disables the polling and thus fixes the issue. Br. /Rick [1] http://www.spinics.net/lists/linux-ide/msg23487.html -- http://rickvanderzwet.nl [-- Attachment #2 --] Index: sys/dev/ata/chipsets/ata-intel.c =================================================================== --- sys/dev/ata/chipsets/ata-intel.c (revision 222949) +++ sys/dev/ata/chipsets/ata-intel.c (working copy) @@ -366,7 +366,10 @@ smap[1] = 3; } } - if (ch->flags & ATA_SATA) { + if (ctlr->chip->chipid == ATA_I82801HBM_S1) { + /* Disable polling, locks up after enabling sidpr */ + ctlr->setmode = ata_intel_new_setmode; + } else if (ch->flags & ATA_SATA) { if ((ctlr->chip->cfg1 & INTEL_ICH5)) { ch->flags |= ATA_PERIODIC_POLL; ch->hw.status = ata_intel_sata_status;
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