Messages in this thread | | | Subject | RE: [patch 0/4] x86: PAT followup - Incremental changes and bug fixes | Date | Wed, 16 Jan 2008 11:05:31 -0800 | From | "Pallipadi, Venkatesh" <> |
| |
Can you attach the e820 map from the top of your dmesg.
Thanks, Venki
>-----Original Message----- >From: Andreas Herrmann [mailto:andreas.herrmann3@amd.com] >Sent: Wednesday, January 16, 2008 10:58 AM >To: Pallipadi, Venkatesh >Cc: ak@muc.de; ebiederm@xmission.com; rdreier@cisco.com; >torvalds@linux-foundation.org; gregkh@suse.de; >airlied@skynet.ie; davej@redhat.com; mingo@elte.hu; >tglx@linutronix.de; hpa@zytor.com; akpm@linux-foundation.org; >arjan@infradead.org; Barnes, Jesse; davem@davemloft.net; >linux-kernel@vger.kernel.org >Subject: Re: [patch 0/4] x86: PAT followup - Incremental >changes and bug fixes > >Hi, > >I just want to report that the PAT support in x86/mm causes crashes >on two of my test machines. On both boxes the SATA detection does >not work when the PAT support is patched into the kernel. > >Symptoms are as follows -- best described by a diff between the >two boot.logs: > ># diff boot-failing.log boot-working.log > >-Linux version 2.6.24-rc8-ga9f7faa5 (root@hunter) (gcc version ... >+Linux version 2.6.24-rc8-g2ea3cf43 (root@hunter) (gcc version ... >... > early_iounmap(ffffffff82a0b000, 00001000) >-early_ioremap(000000000000c000, 00001000) => -000002103394304 >-early_iounmap(ffffffff82a0c000, 00001000) > early_iounmap(ffffffff82808000, 00001000) >... >-ACPI: PCI interrupt for device 0000:00:12.0 disabled >-sata_sil: probe of 0000:00:12.0 failed with error -12 >+scsi0 : sata_sil >+scsi1 : sata_sil >+ata1: SATA max UDMA/100 mmio m512@0xc0403000 tf 0xc0403080 irq 22 >... >-AC'97 space ioremap problem >-ACPI: PCI interrupt for device 0000:00:14.5 disabled >-ATI IXP AC97 controller: probe of 0000:00:14.5 failed with error -5 > ALSA device list: >- No soundcards found. >+ #0: ATI IXP rev 80 with ALC655 at 0xc0403800, irq 17 >... >-VFS: Cannot open root device "sda1" or unknown-block(0,0) >-Please append a correct "root=" boot option; here are the >available partitions: >-1600 4194302 hdc driver: ide-cdrom >-Kernel panic - not syncing: VFS: Unable to mount root fs on >unknown-block(0,0) >+kjournald starting. Commit interval 5 seconds >+EXT3-fs: mounted filesystem with ordered data mode. >+VFS: Mounted root (ext3 filesystem) readonly. >... > > <snip> > >The second test machine uses ahci. But the symptoms are similar. > >I performed a git-bisect on x86/mm. Last commit that worked for me was > >2ea3cf43fddecbfd66353caafdf73ec21ea3760b (x86: fix >early_ioremap() ISA window) > >The subsequent commits for PAT support introduced the problem. >I noticed that PAT should be disabled by default, but >obviously the patches >still have some side-effect. (Maybe ioremap changes lead to >the problem?) > >Boot-logs are attached: > > boot-failing.log for x86/mm as of v2.6.24-rc8-672-ga9f7faa > boot-working.log for x86/mm as of v2.6.24-rc8-621-g2ea3cf4 > >Hopefully it helps to track down the problem. >Maybe someone has an idea why the PAT patches are causing that >ominous "PCI interrupt for device ... disabled" messages. > > >Thanks and regards, > >Andreas >
| |