[7754] in linux-scsi channel archive
gdth calls scsi_do_cmd() with an uninitialized Scsi_Device structure
daemon@ATHENA.MIT.EDU (Manfred Spraul)
Sun Dec 26 13:54:32 1999
Message-ID: <386663D7.5ACC70E@colorfullife.com>
Date: Sun, 26 Dec 1999 19:52:07 +0100
From: Manfred Spraul <manfreds@colorfullife.com>
MIME-Version: 1.0
To: Sergey Kubushin <ksi@ksi-linux.com>,
linux-kernel@vger.rutgers.edu, linux-scsi@vger.rutgers.edu
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Sergey Kubushin wrote:
>
>
> As one can see the output ends on "Physical Devices:", no even a new line
> after it.
>
We are in gdth_get_info(), somewhere in the long loop.
> > Trace; c010bea1 <error_code+2d/34>
> > Trace; d080915c <[scsi_mod]scsi_insert_special_cmd+6c/78>
The function dereferences cmd->device->request_fn.
> > Trace; d0801b04 <[scsi_mod]scsi_do_cmd+18c/1b4>
> > Trace; d081a114 <[gdth]gdth_do_cmd+9c/e0>
> > Trace; d081a158 <[gdth]gdth_scsi_done+0/58>
> > Trace; d0819131 <[gdth]gdth_get_info+4fd/1444>
>
Ok, I found the problem:
static int gdth_get_info()
{
[...]
Scsi_Device sdev;
[...]
memset(&sdev,0,sizeof(Scsi_device));
[...]
scp.device = &sdev;
scsi_do_cmd(&scp,...)
}
gdth calls scsi_do_cmd() with an uninitialized Scsi_Device structure!
Unfortunately, I have no idea how to solve it [except killing the /proc
interface], perhaps someone who understands the scsi layer could fix it?
> It'd be very good. But I don't know how to help you any further...
> Unfortunately, I don't have a line printer around to use an lp console...
Thanks for your patience!
--
Manfred
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