From: Roland Dreier <rdreier@cisco.com>
To: linux-kernel@vger.kernel.org
Subject: nommu_map_sg: overflow with ata_piix?
Date: Mon, 20 Mar 2006 17:05:35 -0800 [thread overview]
Message-ID: <adawteoa9pc.fsf@cisco.com> (raw)
I just got a new dual Xeon system with 4 GB of RAM and SATA drives.
It boots fine with Debian's 2.6.15 kernel, but I just tried building a
kernel from an up-to-date Linus tree, and I get the following on boot:
scsi0 : ata_piix
ATA: abnormal status 0x7F on port 0x405F
scsi1 : ata_piix
Vendor: ATA Model: Maxtor 6L080M0 Rev: BACE
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through
sda:<3>nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff
nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff
nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff
nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff
nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff
nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff
sd 0:0:0:0: SCSI error: return code = 0x70000
and then of course it panics because it can't find the root partition.
Some RAM is being remapped above 4 GB:
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000dfff3000 (usable)
BIOS-e820: 00000000dfff3000 - 00000000dfffb000 (ACPI data)
BIOS-e820: 00000000dfffb000 - 00000000e0000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fed00000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
BIOS-e820: 00000000ffc00000 - 0000000100000000 (reserved)
BIOS-e820: 0000000100000000 - 000000011bfff000 (usable)
Any suggestions? I can provide more debugging info if required.
Thanks,
Roland
next reply other threads:[~2006-03-21 1:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-21 1:05 Roland Dreier [this message]
2006-03-21 3:16 ` nommu_map_sg: overflow with ata_piix? Roland Dreier
2006-03-21 7:11 ` Muli Ben-Yehuda
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