No valid timers found on ALIX (was Re: 9.0-BETA2 - Kernel Panic on ALIX)

Edgar Martinez emartinez at
Wed Aug 31 19:29:26 UTC 2011

Nope..I rebuilt with both options..and just one at a time..

panic: No usable event timer found!
KDB: stack backtrace:
X_db_sym_numargs(c0758a2d) at 0xc0471f85 = X_db_sym_numargs+0x135
kdb_backtrace(c2820d38,1,fffffff,c2820d40,c070257a,...) at 0xc05a9c98 = kdb_backtrace+0x28
panic(c077df08,c078251c,fffffff,c2820d48,c0708b88,...) at 0xc0581322 = panic+0xa2
cpu_initclocks_bsp(c2820d60,c054358b,c07c8f14,c0750d2a,0,...) at 0xc070257a = cpu_initclocks_bsp+0xfa
cpu_initclocks(c07c8f14,c0750d2a,0,0,c2820d78,...) at 0xc0708b88 = cpu_initclocks+0x8
hardclock_sync(0,281ec00,281e000,2825000,0,...) at 0xc054358b = hardclock_sync+0x3b
mi_startup() at 0xc0541469 = mi_startup+0xa9
btext() at 0xc0447665 = btext+0x95
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at      0xc05a9aa4 = kdb_enter+0x34:    movl    $0,0xc07d93b4 = kdb_why

Is still the result..

-----Original Message-----
From: Mike Tancsa [mailto:mike at] 
Sent: Wednesday, August 31, 2011 10:53 AM
To: Adrian Chadd
Cc: Edgar Martinez; freebsd-current at
Subject: Re: No valid timers found on ALIX (was Re: 9.0-BETA2 - Kernel Panic on ALIX)

On 8/31/2011 12:27 PM, Adrian Chadd wrote:
> Just to clarify for Edgar,
> His 9.0 build isn't finding any valid timers; hence why the thing
> panics upon boot.
> Since I've got a few Alix boards I'd like to use for 11n testing, i'd
> like to know how to make this work.
> Does anyone know the relevant magic to see which timers are available,
> and force enable something that'll work?

	I had just tried with a Soekris not long ago and it was happy with
Beta1 and 2.... csuping... updating... and it still works.  dmesg.txt at

What if you add

option          CPU_GEODE
option          CPU_SOEKRIS

to the kernel ? I think actually only one is needed, but I forget which one.


Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike at
Providing Internet services since 1994
Cambridge, Ontario Canada

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