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SubjectRe: 4.15.14 crash with iscsi target and dvd
Bart Van Assche wrote:
> On Thu, 2018-04-05 at 22:06 -0400, Wakko Warner wrote:
> > I know now why scsi_print_command isn't doing anything. cmd->cmnd is null.
> > I added a dev_printk in scsi_print_command where the 2 if statements return.
> > Logs:
> > [ 29.866415] sr 3:0:0:0: cmd->cmnd is NULL
>
> That's something that should never happen. As one can see in
> scsi_setup_scsi_cmnd() and scsi_setup_fs_cmnd() both functions initialize
> that pointer. Since I have not yet been able to reproduce myself what you
> reported, would it be possible for you to bisect this issue? You will need
> to follow something like the following procedure (see also
> https://git-scm.com/docs/git-bisect):

After doing 3 successful compiles with good/bad, I got this error and was
not able to compile any more kernels:
CC scripts/mod/devicetable-offsets.s
scripts/mod/empty.c:1:0: error: code model kernel does not support PIC mode
/* empty file to figure out endianness / word size */

scripts/mod/devicetable-offsets.c:1:0: error: code model kernel does not support PIC mode
#include <linux/kbuild.h>

scripts/Makefile.build:153: recipe for target 'scripts/mod/devicetable-offsets.s' failed

I don't think it found the bad commit.

--
Microsoft has beaten Volkswagen's world record. Volkswagen only created 22
million bugs.

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