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SubjectRe: [PATCH] Chaining sg lists for big IO commands v5
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On Tue, 2007-05-15 at 19:50 +0200, Jens Axboe wrote:
> On Tue, May 15 2007, Badari Pulavarty wrote:
> > On Tue, 2007-05-15 at 19:20 +0200, Jens Axboe wrote:
> > > On Tue, May 15 2007, Badari Pulavarty wrote:
> > > > On Fri, 2007-05-11 at 15:51 +0200, Jens Axboe wrote:
> > > > > Hi,
> > > > >
> > > > > Updated version of the patch - this time I'll just attach the patch
> > > > > file...
> > > >
> > > > Missing scatterlist.h inclusions..
> > > >
> > > > drivers/scsi/sym53c8xx_2/sym_glue.c: In function ???sym_scatter???:
> > > > drivers/scsi/sym53c8xx_2/sym_glue.c:385: warning: implicit declaration
> > > > of function ???for_each_sg???
> > > > drivers/scsi/sym53c8xx_2/sym_glue.c:385: error: expected ???;??? before ???{???
> > > > token
> > > > drivers/scsi/sym53c8xx_2/sym_glue.c:375: warning: unused variable ???tp???
> > > > make[3]: *** [drivers/scsi/sym53c8xx_2/sym_glue.o] Error 1
> > > >
> > > >
> > > > drivers/scsi/qla2xxx/qla_iocb.c: In function ???qla24xx_build_scsi_iocbs???:
> > > > drivers/scsi/qla2xxx/qla_iocb.c:678: warning: implicit declaration of
> > > > function ???for_each_sg???
> > > > drivers/scsi/qla2xxx/qla_iocb.c:678: error: expected ???;??? before ???{???
> > > > token
> > >
> > > Thanks, will fix those. What arch? I tested it here.
> >
> > I am playing with them on ppc64.
>
> Ah ok, you need the updated patch series for ppc64 support. Builds fine
> here on ppc64. See the #sglist branch of the block repo:
>
> git://git.kernel.dk/data/git/linux-2.6-block.git
>
> I can mail you an updated patch, if you want.
>

paniced my amd64 box on boot :(

Unable to handle kernel NULL pointer dereference at 000000000000001e
RIP:
[<ffffffff80381aa1>] blk_rq_map_sg+0x71/0x1b0
PGD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.22-rc1 #2
RIP: 0010:[<ffffffff80381aa1>] [<ffffffff80381aa1>] blk_rq_map_sg
+0x71/0x1b0
RSP: 0000:ffff810180239330 EFLAGS: 00010287
RAX: 0000000179d0ffff RBX: ffff8101bf204320 RCX: 0000000000001000
RDX: ffff810179c62000 RSI: ffff8101df507780 RDI: 0000000000179d00

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