Whate kind of kernel errors cause an Segmentation Fault

Whate kind of kernel errors cause an Segmentation Fault

[Ralph Blach]

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What kind of kernel return codes will cause the C library to print out
the message

"Segmentation Fault"

Thanks

Chip

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RE: Whate kind of kernel errors cause an Segmentation Fault

[Jim Lewis]

"Segmentation Fault" gets printed when a SIGSEGV is sent to a process.
Look in arch/ppc/kernel for SIGSEGV. Two exceptions I know will cause
it are Machine-check and Alignment.
-Jim Lewis

> -----Original Message-----
> From: owner-linuxppc-embedded@lists.linuxppc.org
> [mailto:owner-linuxppc-embedded@lists.linuxppc.org]On
> Behalf Of Ralph
> Blach
> Sent: Friday, March 30, 2001 8:19 AM
> To: Embedded Linux list
> Subject: Whate kind of kernel errors cause an Segmentation Fault
>
>
> What kind of kernel return codes will cause the C library
> to print out
> the message
>
> "Segmentation Fault"
>
> Thanks
>
> Chip


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

RE: Whate kind of kernel errors cause an Segmentation Fault

[Kári Davíðsson]

EFAULT i believe

check linux/include/asm/errno.h

K.D.

> -----Original Message-----
> From: Ralph Blach [mailto:rcblach@raleigh.ibm.com]
> Sent: 30. mars 2001 14:19
> To: Embedded Linux list
> Subject: Whate kind of kernel errors cause an Segmentation Fault
>
>
> What kind of kernel return codes will cause the C library to print out
> the message
>
> "Segmentation Fault"
>
> Thanks
>
> Chip
>

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Whate kind of kernel errors cause an Segmentation Fault

[Kenneth Johansson]

No segmentation fault is sent as signal 11 it's not a return value.

Happens when the program uses memory it dose not own.

Kári Davíðsson wrote:
>
> EFAULT i believe
>
> check linux/include/asm/errno.h
>
> K.D.
>
> > -----Original Message-----
> > From: Ralph Blach [mailto:rcblach@raleigh.ibm.com]
> > Sent: 30. mars 2001 14:19
> > To: Embedded Linux list
> > Subject: Whate kind of kernel errors cause an Segmentation Fault
> >
> >
> > What kind of kernel return codes will cause the C library to print out
> > the message
> >
> > "Segmentation Fault"
> >
> > Thanks
> >
> > Chip
> >
>

--
Kenneth Johansson
Ericsson Business Innovation AB   Tel: +46 8 404 71 83
Viderögatan 3                     Fax: +46 8 404 72 72
164 80 Stockholm                  kenneth.johansson@inn.ericsson.se

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

RE: Whate kind of kernel errors cause an Segmentation Fault

[Kári Davíðsson]

Well he asked what kind of kernel error causes segfault.
If I am not wrong returning EFAULT, e.g. from driver causes
the kernel to send signal 11 (SIGSEGV) to the application
which has default signal handler that causes the application
to crash.

K.D.

> -----Original Message-----
> From: Kenneth Johansson [mailto:kenneth.johansson@inn.ericsson.se]
> Sent: 30. mars 2001 14:44
> To: Kári Davíðsson
> Cc: Embedded Linux list
> Subject: Re: Whate kind of kernel errors cause an Segmentation Fault
>
>
> No segmentation fault is sent as signal 11 it's not a return value.
>
> Happens when the program uses memory it dose not own.
>
> Kári Davíðsson wrote:
> >
> > EFAULT i believe
> >
> > check linux/include/asm/errno.h
> >
> > K.D.
> >
> > > -----Original Message-----
> > > From: Ralph Blach [mailto:rcblach@raleigh.ibm.com]
> > > Sent: 30. mars 2001 14:19
> > > To: Embedded Linux list
> > > Subject: Whate kind of kernel errors cause an Segmentation Fault
> > >
> > >
> > > What kind of kernel return codes will cause the C library
> to print out
> > > the message
> > >
> > > "Segmentation Fault"
> > >
> > > Thanks
> > >
> > > Chip
> > >
> >
>
> --
> Kenneth Johansson
> Ericsson Business Innovation AB   Tel: +46 8 404 71 83
> Viderögatan 3                     Fax: +46 8 404 72 72
> 164 80 Stockholm                  kenneth.johansson@inn.ericsson.se
>

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/