[sane-devel] Bus Error on pnm backend in FreeBSD 8

[Alejandro Imass]

On Mon, Mar 22, 2010 at 12:19 PM, m. allan noah <kitno455 at gmail.com> wrote:
> That is right after the patch you added. try valgrind?
>

It segfaults with the original code and bus error with the patch. The
only lines differing between the original ports file and the current
git file are the sane_get_device lines that condition/hide the blocked
devices.

I haven't tried valgrind just yet, thought the ktrace was explicit
enough. Let's see what I can determine with valgrind...

Alejandro

> allan
>
> On Mon, Mar 22, 2010 at 12:37 PM, Alejandro Imass <ait at p2ee.org> wrote:
>> On Mon, Mar 22, 2010 at 11:57 AM, m. allan noah <kitno455 at gmail.com> wrote:
>>> try turning up the pnm backend's debugging?
>>>
>>
>> Here you go:
>>
>> [root at lucifer /usr/ports/graphics/sane-backends]# scanimage -L
>> [sanei_debug] Setting debug level of dll to 255.
>> [dll] sane_init: SANE dll backend version 1.0.12 from sane-backends 1.0.20
>> [dll] sane_init/read_dlld: processing /usr/local/etc/sane.d/dll.d ...
>> [dll] sane_init/read_dlld: done.
>> [dll] sane_init/read_config: reading dll.conf
>> [dll] add_backend: adding backend `pnm'
>> [dll] sane_get_devices
>> [dll] load: searching backend `pnm' in `/usr/local/lib/sane'
>> [dll] load: trying to load `/usr/local/lib/sane/libsane-pnm.so.1'
>> [dll] load: dlopen()ing `/usr/local/lib/sane/libsane-pnm.so.1'
>> [dll] init: initializing backend `pnm'
>> [sanei_debug] Setting debug level of pnm to 255.
>> [pnm] sane_init: version_code != 0, authorize != 0
>> [pnm] sane_init: SANE pnm backend version 1.0.9 from sane-backends 1.0.20
>> [dll] init: backend `pnm' is version 1.0.9
>> [pnm] sane_get_devices: local_only = 0
>> Bus error: 10 (core dumped)
>>
>>
>>> allan
>>>
>>> On Mon, Mar 22, 2010 at 12:15 PM, Alejandro Imass <ait at p2ee.org> wrote:
>>>> (sorry if this is a double post, I hit send before conforming my
>>>> subscription to the list)
>>>> Hi,
>>>>
>>>> I am trying to get the pnm backend to work on FreeBSD. I originally
>>>> thought it was related to an old bug in pnm.c and had filed this bug
>>>> which is now closed:
>>>>
>>>> https://alioth.debian.org/tracker/?group_id=30186&atid=410366&func=detail&aid=312401
>>>>
>>>> I built the FreeBSD port using the patch method and patching the pnm.c
>>>> file with the diff I got from the oriniogal pnm.c file and the pnm.c
>>>> file I got from the latest master via git. I verified that the patch
>>>> worked by examining the port's work directory and it patched perfectly
>>>> before build.
>>>>
>>>> The FreeBSD port is built from a 1.0.20 freeze, here are the first few
>>>> lines of the ChangeLog:
>>>>
>>>> ******  Release of sane-backends 1.0.20. End of code freeze ******
>>>>
>>>> 2009-05-03  m. allan noah <kitno455 a t gmail d o t com>
>>>>       * config.guess, config.sub: updated to latest versions
>>>>       * NEWS, configure.in, configure: updated for 1.0.20
>>>>       * sane-backends.lsm, doc/releases.txt: minor tweaks
>>>>       * doc/descriptions/coolscan3.desc, doc/descriptions/rts8891.desc:
>>>>         add :new marker, correct manpage link
>>>>
>>>> 2009-05-01  m. allan noah <kitno455 a t gmail d o t com>
>>>>       * backend/fujitsu.c: copy_buffer() needs to count lines, or M309[12]
>>>>         cannot scan in duplex
>>>>
>>>> I am attaching the debug output with SANE_DEBUG_DLL=255, the FBSD
>>>> Kernel trace in plain text (bzipped) and the patch file. I am
>>>> available to help debug this on FBSD, but I don't know how to proceed.
>>>>
>>>> Thanks in advance,
>>>> Alejandro Imass
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>> --
>>> "The truth is an offense, but not a sin"
>>>
>>
>
>
>
> --
> "The truth is an offense, but not a sin"
>