* incorrect panic("failed to get clock for system timer"); ??
@ 2010-06-01 16:48 f. achkar
2010-06-01 17:54 ` Russell King - ARM Linux
0 siblings, 1 reply; 2+ messages in thread
From: f. achkar @ 2010-06-01 16:48 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
Newbie debugging Linux-2.6.32-9 on S3C2450, the kernel seems to panic at :
s3c2410_timer_init () at arch/arm/plat-s3c/time.c:256
if (IS_ERR(timerclk))
panic("failed to get clock for system timer");
more precisely 'if (IS_ERR(timerclk))' is non-null !?! although the
'timerclk' seem to be fine:
(gdb) print *timerclk
$27 = {list = {next = 0xc04a933c, prev = 0xc04a93ac}, owner = 0x0,
parent = 0xc04abfd4, name = 0xc042c5a1 "timers", id = -1,
usage = 0, rate = 0, ctrlbit = 1024, enable = 0xc009631c
<s3c2443_clkcon_enable_p>, set_rate = 0, get_rate = 0,
round_rate = 0, set_parent = 0}
(gdb) s
257 panic("failed to get clock for system timer");
(gdb) print (unsigned long)(timerclk)
$28 = 3226112884
(gdb)
I'm not sure why 'IS_ERR(timerclk)' is holding true? or is it a bug ?
thanks,
ferar
^ permalink raw reply [flat|nested] 2+ messages in thread* incorrect panic("failed to get clock for system timer"); ??
2010-06-01 16:48 incorrect panic("failed to get clock for system timer"); ?? f. achkar
@ 2010-06-01 17:54 ` Russell King - ARM Linux
0 siblings, 0 replies; 2+ messages in thread
From: Russell King - ARM Linux @ 2010-06-01 17:54 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Jun 01, 2010 at 12:48:36PM -0400, f. achkar wrote:
> Hi,
> Newbie debugging Linux-2.6.32-9 on S3C2450, the kernel seems to panic at :
> s3c2410_timer_init () at arch/arm/plat-s3c/time.c:256
>
> if (IS_ERR(timerclk))
> panic("failed to get clock for system timer");
>
> more precisely 'if (IS_ERR(timerclk))' is non-null !?! although the
> 'timerclk' seem to be fine:
> (gdb) print *timerclk
> $27 = {list = {next = 0xc04a933c, prev = 0xc04a93ac}, owner = 0x0,
> parent = 0xc04abfd4, name = 0xc042c5a1 "timers", id = -1,
> usage = 0, rate = 0, ctrlbit = 1024, enable = 0xc009631c
> <s3c2443_clkcon_enable_p>, set_rate = 0, get_rate = 0,
> round_rate = 0, set_parent = 0}
> (gdb) s
> 257 panic("failed to get clock for system timer");
> (gdb) print (unsigned long)(timerclk)
> $28 = 3226112884
> (gdb)
>
> I'm not sure why 'IS_ERR(timerclk)' is holding true? or is it a bug ?
> thanks,
Looks to me like a compiler bug. Your timerclk is 0xC04A9374, which
certainly isn't a value which IS_ERR() should return true for.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-06-01 16:48 incorrect panic("failed to get clock for system timer"); ?? f. achkar
2010-06-01 17:54 ` Russell King - ARM Linux
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