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* jffs2, kupdated and wdog to
@ 2003-08-13 11:27 Jaap-Jan Boor
  0 siblings, 0 replies; 2+ messages in thread
From: Jaap-Jan Boor @ 2003-08-13 11:27 UTC (permalink / raw)
  To: linuxppc-embedded


Hi,

I use a kernel timer (add_timer) to strobe proprietary wdog implemented
in hw. I notice that once in a while when the kupdated task gets busy,
my kernel timer is not called for a long time (400 - 500 ms) because
of jffs2 administration (e.g. jffs2_free_inode_cache).

I still use the Denx 2.4.4 eldk 1.0 kernel. Does somebody know of
a more recent jffs2 that calls schedule() more often or is this
behaviour changed in kernels with the preemptible patch?

In addition, is there a better way to strobe watchdogs then using
a kernel timer?

thanks,

Jaap-Jan

--
J.G.J. Boor			  Anton Philipsweg 1
Software Engineer		  1223 KZ Hilversum
AimSys bv              		  tel. +31 35 689 1941
Postbus 2194, 1200 CD Hilversum   mailto:jjboor@aimsys.nl


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

^ permalink raw reply	[flat|nested] 2+ messages in thread
* jffs2, kupdated and wdog to
@ 2003-08-14  7:03 Jaap-Jan Boor
  0 siblings, 0 replies; 2+ messages in thread
From: Jaap-Jan Boor @ 2003-08-14  7:03 UTC (permalink / raw)
  To: linuxppc-embedded


Hi,

I use a kernel timer (add_timer) to strobe proprietary wdog implemented
in hw. I notice that once in a while when the kupdated task gets busy,
my kernel timer is not called for a long time (400 - 500 ms) because
of jffs2 administration (e.g. jffs2_free_inode_cache).

I still use the Denx 2.4.4 eldk 1.0 kernel. Does somebody know of
a more recent jffs2 that calls schedule() more often or is this
behaviour changed in kernels with the preemptible patch?

(is there a better way to strobe watchdogs then using a kernel timer?)

thanks,

Jaap-Jan

--
J.G.J. Boor			  Anton Philipsweg 1
Software Engineer		  1223 KZ Hilversum
AimSys bv              		  tel. +31 35 689 1941
Postbus 2194, 1200 CD Hilversum   mailto:jjboor@aimsys.nl


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

^ permalink raw reply	[flat|nested] 2+ messages in thread
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