Re: SG_IO with >4k buffer size to iscsi sg device causes "Bad page" panic

2007-06-07 Thread Herbert Xu
Please don't drop CCs. Qi, Yanling <[EMAIL PROTECTED]> wrote: > >> Qi, Yanling <[EMAIL PROTECTED]> wrote: >> > @@ -2571,6 +2572,13 @@ sg_page_malloc(int rqSz, int lowDma, int >> >resp = (char *) __get_free_pages(page_mask, order); >> > /* try half */ >> >resSz = a_s

RE: Very slow writes with mptsas

2007-06-07 Thread Moore, Eric
On Wednesday, June 06, 2007 12:06 PM, Douglas Gilbert wrote: > > Matthew Jacob wrote: > > The FreeBSD problem was fixed by Scott Long a couple of days ago by > > doing some cut through SAS stuff that enabled Write Cache for SATA > > drives. Why LSI-Logic couldn't just blitheringly synthesize >

Re: Very slow writes with mptsas

2007-06-07 Thread bloch
On Wed, 06 Jun 2007, Douglas Gilbert wrote: > Matthew Jacob wrote: > > The FreeBSD problem was fixed by Scott Long a couple of days ago by > > doing some cut through SAS stuff that enabled Write Cache for SATA > > drives. Why LSI-Logic couldn't just blitheringly synthesize mode page > > 8 is beyon

[PATCH] aacraid: add SCSI SYNCHONIZE_CACHE range checking.

2007-06-07 Thread Salyzyn, Mark
Customer running an application that issues SYNCHRONIZE_CACHE calls directly noticed the broad stroke of the current implementation in the aacraid driver resulting in multiple applications feeding I/O to the storage causing the issuing application to stall for long periods of time. By only waiting

Re: [PATCH] bsg: fix the deadlock on discarding done commands

2007-06-07 Thread Jens Axboe
On Tue, Jun 05 2007, FUJITA Tomonori wrote: > From: Jens Axboe <[EMAIL PROTECTED]> > Subject: Re: [PATCH] bsg: fix the deadlock on discarding done commands > Date: Mon, 4 Jun 2007 16:04:15 +0200 > > > On Sun, Jun 03 2007, FUJITA Tomonori wrote: > > > The previous commit to fix a blocking read bug