Date: Wed, 02 Oct 2013 08:25:30 +0200 From: Hans Petter Selasky <hps@bitfrost.no> To: John <freebsd-lists@potato.growveg.org> Cc: freebsd-current@freebsd.org Subject: Re: gphoto2 bus error Message-ID: <524BBC5A.6060108@bitfrost.no> In-Reply-To: <20131001135021.GA56944@potato.growveg.org> References: <20131001135021.GA56944@potato.growveg.org>
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On 10/01/13 15:50, John wrote:
> sorry, forgot to change "From:", sending again
>
> On Tue, Oct 01, 2013 at 02:45:29PM +0100, John wrote:
>> On Tue, Oct 01, 2013 at 02:41:22PM +0200, Hans Petter Selasky wrote:
>>>
>>> Hi,
>>>
>>> Could you enter "bt" in GDB and show the output when this crash happens?
>>>
>>> --HPS
>>
>> Sure! Thanks for looking at the problem.
>>
>> Program received signal SIGBUS, Bus error.
>> [Switching to Thread 802c07400 (LWP 101021/scanimage)]
>> 0x00000008063c1829 in scsi_inquiry ()
>> from /usr/local/lib/sane/libsane-microtek2.so.1
>> (gdb) bt
>> #0 0x00000008063c1829 in scsi_inquiry ()
>> from /usr/local/lib/sane/libsane-microtek2.so.1
>> #1 0x00000008063b384c in attach ()
>> from /usr/local/lib/sane/libsane-microtek2.so.1
>> #2 0x00000008063b4a69 in attach_one ()
>> from /usr/local/lib/sane/libsane-microtek2.so.1
>> #3 0x000000080083205b in sanei_scsi_find_devices ()
>> from /usr/local/lib/libsane.so.1
>> #4 0x000000080082ef1e in sanei_config_attach_matching_devices ()
>> from /usr/local/lib/libsane.so.1
>> #5 0x00000008063b4993 in sane_microtek2_init ()
>> from /usr/local/lib/sane/libsane-microtek2.so.1
>> #6 0x000000080083acb4 in init () from /usr/local/lib/libsane.so.1
>> #7 0x000000080083a944 in sane_dll_get_devices ()
>> from /usr/local/lib/libsane.so.1
>> #8 0x0000000000402089 in ?? ()
>> #9 0x0000000000401c41 in ?? ()
>> #10 0x0000000800628000 in ?? ()
>> #11 0x0000000000000000 in ?? ()
>> (gdb)
>>
>> --
>> John
>
Hi,
Can you try to apply the attached patch to:
cd /usr/ports/graphics/sane-backends
make clean extract patch
cd /usr/ports/graphics/sane-backends/work/sane-backends-1.0.23
cat sane-backend-debug.diff | patch -p1
cd /usr/ports/graphics/sane-backends
make all deinstall install
Maybe you can figure out exactly what line is causing the crash by
adding more printf's like shown in the attached patch.
--HPS
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diff --git a/backend/microtek2.c b/backend/microtek2.c
index d56e568..1aafa80 100644
--- a/backend/microtek2.c
+++ b/backend/microtek2.c
@@ -4276,6 +4276,8 @@ scsi_send_gamma(Microtek2_Scanner *ms)
/*---------- scsi_inquiry() --------------------------------------------------*/
+#include <stdio.h>
+
static SANE_Status
scsi_inquiry(Microtek2_Info *mi, char *device)
{
@@ -4286,6 +4288,7 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
size_t size;
int sfd;
+ printf("A %p %s\n", mi, device);
DBG(30, "scsi_inquiry: mi=%p, device='%s'\n", (void *) mi, device);
@@ -4296,6 +4299,8 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
return status;
}
+ printf("B\n");
+
INQ_CMD(cmd);
INQ_SET_ALLOC(cmd, INQ_ALLOC_L);
result = (uint8_t *) alloca(INQ_ALLOC_L);
@@ -4306,6 +4311,8 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
return SANE_STATUS_NO_MEM;
}
+ printf("C\n");
+
size = INQ_ALLOC_L;
status = sanei_scsi_cmd(sfd, cmd, sizeof(cmd), result, &size);
if ( status != SANE_STATUS_GOOD )
@@ -4315,6 +4322,8 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
return status;
}
+ printf("D\n");
+
INQ_GET_INQLEN(inqlen, result);
INQ_SET_ALLOC(cmd, inqlen + INQ_ALLOC_L);
result = alloca(inqlen + INQ_ALLOC_L);
@@ -4328,6 +4337,8 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
if (md_dump >= 2 )
dump_area2(cmd, sizeof(cmd), "inquiry");
+ printf("E\n");
+
status = sanei_scsi_cmd(sfd, cmd, sizeof(cmd), result, &size);
if ( status != SANE_STATUS_GOOD )
{
@@ -4337,12 +4348,16 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
}
sanei_scsi_close(sfd);
+ printf("F\n");
+
if (md_dump >= 2 )
{
dump_area2((uint8_t *) result, size, "inquiryresult");
dump_area((uint8_t *) result, size, "inquiryresult");
}
+ printf("G\n");
+
/* copy results */
INQ_GET_QUAL(mi->device_qualifier, result);
INQ_GET_DEVT(mi->device_type, result);
@@ -4352,6 +4367,7 @@ scsi_inquiry(Microtek2_Info *mi, char *device)
INQ_GET_REV(mi->revision, (char *)result);
INQ_GET_MODELCODE(mi->model_code, result);
+ printf("H\n");
return SANE_STATUS_GOOD;
}
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