* do_ri
@ 2003-07-02 15:16 Sirotkin, Alexander
2003-07-02 15:28 ` do_ri Maciej W. Rozycki
0 siblings, 1 reply; 6+ messages in thread
From: Sirotkin, Alexander @ 2003-07-02 15:16 UTC (permalink / raw)
To: linux-mips
Hello dearest all,
Can anyone please enlighten me about the do_ri function ? I could not
find any reference to what it does and when it's called anywhere.
The real reason I'm asking is because I get BUG() somewhere
in that function and I can not figure when it's getting called.
10x.
--
Alexander Sirotkin
SW Engineer
Texas Instruments
Broadband Communications Israel (BCIL)
Tel: +972-9-9706587
________________________________________________________________________
"Those who do not understand Unix are condemned to reinvent it, poorly."
-- Henry Spencer
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: do_ri
2003-07-02 15:16 do_ri Sirotkin, Alexander
@ 2003-07-02 15:28 ` Maciej W. Rozycki
2003-07-02 15:36 ` do_ri Sirotkin, Alexander
0 siblings, 1 reply; 6+ messages in thread
From: Maciej W. Rozycki @ 2003-07-02 15:28 UTC (permalink / raw)
To: Sirotkin, Alexander; +Cc: linux-mips
On Wed, 2 Jul 2003, Sirotkin, Alexander wrote:
> Can anyone please enlighten me about the do_ri function ? I could not
> find any reference to what it does and when it's called anywhere.
It's called from arch/mips/kernel/entry.S or
arch/mips64/kernel/r4k_genex.S to handle the Reserved Instruction
exception.
--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: do_ri
2003-07-02 15:28 ` do_ri Maciej W. Rozycki
@ 2003-07-02 15:36 ` Sirotkin, Alexander
2003-07-02 15:51 ` do_ri Geert Uytterhoeven
0 siblings, 1 reply; 6+ messages in thread
From: Sirotkin, Alexander @ 2003-07-02 15:36 UTC (permalink / raw)
To: Maciej W. Rozycki; +Cc: linux-mips
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Are you sure ?
Because "grep -r" shows only
./arch/mips/kernel/traps.c:asmlinkage void do_ri(struct pt_regs *regs)
./arch/mips/kernel/traps.c: do_ri(regs);
./arch/mips/lx/lxRi.c: do_ri(regp);
On my linux-2.4.17_mvl21 kernel. And I'm quite sure that when my kernel
crashes it's not being called from any of these places.
But then again, may be in may case it's getting called only because some
memory get overwritten.
Maciej W. Rozycki wrote:
On Wed, 2 Jul 2003, Sirotkin, Alexander wrote:
Can anyone please enlighten me about the do_ri function ? I could not
find any reference to what it does and when it's called anywhere.
It's called from arch/mips/kernel/entry.S or
arch/mips64/kernel/r4k_genex.S to handle the Reserved Instruction
exception.
--
Alexander Sirotkin
SW Engineer
Texas Instruments
Broadband Communications Israel (BCIL)
Tel: +972-9-9706587
________________________________________________________________________
"Those who do not understand Unix are condemned to reinvent it, poorly."
-- Henry Spencer
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: do_ri
2003-07-02 15:36 ` do_ri Sirotkin, Alexander
@ 2003-07-02 15:51 ` Geert Uytterhoeven
2003-07-02 15:57 ` do_ri Ralf Baechle
2003-07-02 16:08 ` do_ri Sirotkin, Alexander
0 siblings, 2 replies; 6+ messages in thread
From: Geert Uytterhoeven @ 2003-07-02 15:51 UTC (permalink / raw)
To: Sirotkin, Alexander; +Cc: Maciej W. Rozycki, Linux/MIPS Development
On Wed, 2 Jul 2003, Sirotkin, Alexander wrote:
> Are you sure ?
>
> Because "grep -r" shows only
>
> ./arch/mips/kernel/traps.c:asmlinkage void do_ri(struct pt_regs *regs)
> ./arch/mips/kernel/traps.c: do_ri(regs);
> ./arch/mips/lx/lxRi.c: do_ri(regp);
>
> On my linux-2.4.17_mvl21 kernel. And I'm quite sure that when my kernel
> crashes it's not being called from any of these places.
I remember getting bitten by that one, too...
Check out BUILD_HANDLER(ri,ri,sti,silent) in arch/mips/kernel/entry.S.
Grep isn't always your friend, `nm -g' is, in this case :-)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: do_ri
2003-07-02 15:51 ` do_ri Geert Uytterhoeven
@ 2003-07-02 15:57 ` Ralf Baechle
2003-07-02 16:08 ` do_ri Sirotkin, Alexander
1 sibling, 0 replies; 6+ messages in thread
From: Ralf Baechle @ 2003-07-02 15:57 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Sirotkin, Alexander, Maciej W. Rozycki, Linux/MIPS Development
On Wed, Jul 02, 2003 at 05:51:37PM +0200, Geert Uytterhoeven wrote:
> >
> > ./arch/mips/kernel/traps.c:asmlinkage void do_ri(struct pt_regs *regs)
> > ./arch/mips/kernel/traps.c: do_ri(regs);
> > ./arch/mips/lx/lxRi.c: do_ri(regp);
> >
> > On my linux-2.4.17_mvl21 kernel. And I'm quite sure that when my kernel
> > crashes it's not being called from any of these places.
>
> I remember getting bitten by that one, too...
>
> Check out BUILD_HANDLER(ri,ri,sti,silent) in arch/mips/kernel/entry.S.
>
> Grep isn't always your friend, `nm -g' is, in this case :-)
I guess people not finding the callers of the do_* functions is one of the
most common questions on this list :-)
Ralf
PS: Ever heared of Intercal? ;-)
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: do_ri
2003-07-02 15:51 ` do_ri Geert Uytterhoeven
2003-07-02 15:57 ` do_ri Ralf Baechle
@ 2003-07-02 16:08 ` Sirotkin, Alexander
1 sibling, 0 replies; 6+ messages in thread
From: Sirotkin, Alexander @ 2003-07-02 16:08 UTC (permalink / raw)
To: Geert Uytterhoeven; +Cc: Maciej W. Rozycki, Linux/MIPS Development
[-- Attachment #1: Type: text/plain, Size: 1362 bytes --]
Got it. 10x.
Geert,
You save me for second time in a row today, I feel like I owe you a beer
:)
Geert Uytterhoeven wrote:
On Wed, 2 Jul 2003, Sirotkin, Alexander wrote:
Are you sure ?
Because "grep -r" shows only
./arch/mips/kernel/traps.c:asmlinkage void do_ri(struct pt_regs *regs)
./arch/mips/kernel/traps.c: do_ri(regs);
./arch/mips/lx/lxRi.c: do_ri(regp);
On my linux-2.4.17_mvl21 kernel. And I'm quite sure that when my kernel
crashes it's not being called from any of these places.
I remember getting bitten by that one, too...
Check out BUILD_HANDLER(ri,ri,sti,silent) in arch/mips/kernel/entry.S.
Grep isn't always your friend, `nm -g' is, in this case :-)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 --
geert@linux-m68k.org <mailto:geert@linux-m68k.org>
In personal conversations with technical people, I call myself a hacker.
But
when I'm talking to journalists I just say "programmer" or something
like that.
-- Linus
Torvalds
--
Alexander Sirotkin
SW Engineer
Texas Instruments
Broadband Communications Israel (BCIL)
Tel: +972-9-9706587
________________________________________________________________________
"Those who do not understand Unix are condemned to reinvent it, poorly."
-- Henry Spencer
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^ permalink raw reply [flat|nested] 6+ messages in thread
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2003-07-02 15:16 do_ri Sirotkin, Alexander
2003-07-02 15:28 ` do_ri Maciej W. Rozycki
2003-07-02 15:36 ` do_ri Sirotkin, Alexander
2003-07-02 15:51 ` do_ri Geert Uytterhoeven
2003-07-02 15:57 ` do_ri Ralf Baechle
2003-07-02 16:08 ` do_ri Sirotkin, Alexander
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