Segmentation fault when scanning

[Tim Rupp]

I have a Brother MFC-465CN. simple-scan is crashing periodically with the following backtrace from GDB

Program received signal SIGSEGV, Segmentation fault.
page_view_page_size_changed_cb (p=<optimized out>, self=0x7815d0) at page-view.c:4089
4089 self->priv->update_image = TRUE;
(gdb) bt
#0 page_view_page_size_changed_cb (p=<optimized out>, self=0x7815d0) at page-view.c:4089
#1 _page_view_page_size_changed_cb_page_size_changed (_sender=<optimized out>, self=<optimized out>) at page-view.c:224
#2 0x00007ffff668e0a4 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3 0x00007ffff66a002a in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4 0x00007ffff66a96b1 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5 0x00007ffff66a9a3d in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6 0x00000000004129ba in page_set_page_info (self=0x781540, info=<optimized out>) at page.c:410
#7 0x0000000000418e07 in application_scanner_page_info_cb (info=<optimized out>, scanner=<optimized out>, self=<optimized out>)
    at simple-scan.c:928
#8 _application_scanner_page_info_cb_scanner_got_page_info (_sender=0x7815d0, info=0x7fffe837f240, self=0x781540) at simple-scan.c:458
#9 0x00007ffff668e0a4 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff66a002a in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff66a96b1 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007ffff66a9a3d in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x000000000041f751 in scanner_notify_idle_cb (self=0x85be10) at scanner.c:3106
#14 _scanner_notify_idle_cb_gsource_func (self=0x85be10) at scanner.c:3120
#15 0x00007ffff63cda5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007ffff63ce258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007ffff63ce792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ffff78deedd in gtk_main () from /usr/lib/libgtk-3.so.0
#19 0x000000000041ae7f in application_main (args=0x7fffffffe208, args_length1=1) at simple-scan.c:2214
#20 0x00007ffff573d30d in __libc_start_main (main=0x40c450 <main>, argc=1, ubp_av=0x7fffffffe208, init=<optimized out>,
    fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe1f8) at libc-start.c:226
#21 0x000000000040c499 in _start ()

I'd really like to figure out why and fix it.

It crashes right after it finishes scanning a page

I'm using 3.2.1 compiled from source.

I notice there are several "optimized out" strings in there, so the backtrace may not be sufficient. If not, can someone inform me on the configure commands necessary to compile simple-scan to get the most useful debug information? Thanks.

[Tim Rupp (caphrim007)]

I've captured, what I hope, is a more full backtrace.

[Tim Rupp (caphrim007)]

Attached is the simple-scan log file created during the previous crash

[Michael Nagel (nailor)]

does xsane crash as well?

[Tim Rupp (caphrim007)]

I haven't experienced it crash yet with xsane. I guess that doesn't rule
out that it could though.

On 03/11/2012 08:55 AM, Michael Nagel wrote:
> does xsane crash as well?
>

[Michael Nagel (nailor)]

Does the crash happen when performing a certain action in the program or is it more random?
Do you have another scanner so you could test if it depends on the backend involved?

[Tim Rupp (caphrim007)]

It seems random, but given enough scans, it almost always occurs.

It appears to happen right after a scan finishes and the page is/would
be displayed in the UI.

I only ever click the scan button. I do not crop, resize, rotate, etc
the image. I switch between text scanning and photo scanning depending
on the quality and size of the image that is output by each.

I've used the following scan settings

  - single page
  - photo
    - photo resolution 300 dpi
  - text
    - text resolution 300 dpi
  - scan side front and page
  - page size automatic

I think I can find an HP scanner that it should work with.

Are there any compilation options I can re-compile simplescan with that
would provide better insight? Debugger anything?

On 03/20/2012 06:20 AM, Michael Nagel wrote:
> Does the crash happen when performing a certain action in the program or is it more random?
> Do you have another scanner so you could test if it depends on the backend involved?
>

[mebuntu (salsa-temps)]

It normally occurs in less than 10 scans on my computer. Always.

Mar 20 12:59:57 ubuntu kernel: [15109.763387] simple-scan[11017]: segfault at 18 ip 0000000000415a8a sp 00007fff8116dfc0 error 6 in simple-scan[400000+3c000]

[Michael Nagel (nailor)]

> Are there any compilation options I can re-compile simplescan with that
would provide better insight? Debugger anything?
None that I know of.

A lot of crashes with simple-scan are due to problems in sane-backends/the scanner drivers.
For more information, please read [1] https://help.ubuntu.com/community/SimpleScanHardwareIssues

As described there, if this is a problem in the layers below simple-scan your best bet is to get in contact with the sane-devel mailing list. If it is probable that it is a problem within simple-scan, we need to further search for the reason for the problems, but honestly, manpower really is an issue :(

Best Regards
Michael

[Launchpad Janitor (janitor)]

[Expired for Simple Scan because there has been no activity for 60 days.]

[semola (kostoulas67)]

i used vuescan 9 program and my scanner worked fine.