OpenVZ Forum


Home » Mailing lists » Devel » megaraid_mbox: garbage in file
Re: megaraid_mbox: garbage in file [message #2999 is a reply to message #2983] Fri, 05 May 2006 23:32 Go to previous messageGo to previous message
vaverin is currently offline  vaverin
Messages: 708
Registered: September 2005
Senior Member
Ju, Seokmann wrote:
> Can you do one quick change in the driver?
> Search for 'pci_set_dma_mask()' API calls in the driver and mask out one of them with DMA_64BIT_MASK as follow.
> ---
> // if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) {
>
> // conlog(CL_ANN, (KERN_WARNING
> // "megaraid: could not set DMA mask for 64-bit.\n"));
>
> // goto out_free_sysfs_res;
> // }
> ---
>
> I found that the driver is NOT checking 64-bit DMA capability of the controllers accordingly and this could be a reason.

This change help me:
megaraid mailbox: status:0x0 cmd:0xa7 id:0x1f sec:0x1a lba:0x33f624ac
addr:0xffffffff ld:128 sg:4
scsi cmnd: 0x28 0x00 0x33 0xf6 0x24 0xac 0x00 0x00 0x1a 0x00
mbox request_buffer ebeb9380 use_sg 4
mbox sg0: page 050c5d88 off 0 addr e90d2000 len 4096 virt eb0d2000
first 732e646c page->flags 20000000
mbox sg1: page 050c5710 off 0 addr e90a4000 len 4096 virt eb0a4000
first 00000003 page->flags 20000000
mbox sg2: page 050c4438 off 0 addr e901e000 len 4096 virt eb01e000
first 00000000 page->flags 20000000
mbox sg3: page 030d64dc off 1024 addr 5f3f400 len 1024 virt 07f3f400
first 19398a0e page->flags 20001004

Errors go away, file content is correct.

> I'm waiting for feedback from F/W team for MegaRAID 150-4 controller if it supports 64-bit DMA.
>
> I'll update here as I get.

How do you this, can it be the cause of
http://bugzilla.kernel.org/show_bug.cgi?id=6052

If so, you have a good chance to resolve this bug too :)

Thank you,
Vasily Averin

SWsoft Virtuozzo/OpenVZ Linux kernel team

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: [PATCH COMMIT] diff-merge-2.6.16.15-20060510
Next Topic: [PATCH 2/9] namespaces: incorporate fs namespace into nsproxy
Goto Forum:
  

[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Sun Feb 15 04:09:53 GMT 2026

Total time taken to generate the page: 0.46975 seconds
Powered by FUDforum Powered by Virtuozzo Containers