From: "James Spooner" <james@endace.com>
To: jgarzik@pobox.com
Cc: linux-ide@vger.kernel.org
Subject: 2.4.27-rc3-libata1 kunmap() problem
Date: Wed, 21 Jul 2004 11:00:05 +1200 [thread overview]
Message-ID: <054e01c46ead$4c78f6d0$5440a8c0@zeus> (raw)
Hi Jeff
I've downloaded and applied your patchset to support the Intel
PIIX/ICH5 on a Supermicro P4SCT mainboard with the 6300ESB south
bridge.
libata-core.c:2166
kunmap(sg[qc->cursg].page); causes highmem.c to call BUG() after
page->virtual == 0.
I added this printk()...
printk(KERN_WARNING "not unmapping %x %x %x %x\n",
sg[qc->cursg].page,
qc, qc->cursg,
((struct page
*)sg[qc->cursg].page)->virtual);
//kunmap(sg[qc->cursg].page);
dmesg reports:
ata1: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD800 irq 18
ata2: SATA max UDMA/133 cmd 0xD000 ctl 0xD402 bmdma 0xD808 irq 18
not unmapping ce468574 ce468530 1 0
ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003
88:407f
ata1: dev 0 ATA, max UDMA/133, 72303840 sectors: lba48
ata1: dev 0 configured for UDMA/133
ata2: SATA port has no device.
scsi2 : ata_piix
scsi3 : ata_piix
Vendor: ATA Model: WDC WD360GD-00FN Rev: 35.0
Type: Direct-Access ANSI SCSI revision: 05
Attached scsi disk sda at scsi2, channel 0, id 0, lun 0
SCSI device sda: 72303840 512-byte hdwr sectors (37020 MB)
sda: sda1
There should be a Maxtor 120GB on the second ata port.
Cheers
James Spooner
--
James Spooner, BCMS email: james@endace.com
VHDL Firmware Development voice: +64 7 834 6721
Endace Technology fax: +64 7 858 5095
Hamilton, New Zealand mobile: +64 2 144 7638
reply other threads:[~2004-07-20 23:00 UTC|newest]
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