01-19-2013
Sound not working in laptop model Lenovo T430
Hi I have a new TP installed with RHEL 6.0, sound not working in this.
I tried to upgrade the kernel to 2.6.32-279.el6.i686 and also 2.6.32-279.19.1.el6.i686 but getting kernel panic with these kernels.
Any idea what is problem ????
Last edited by Priy; 01-19-2013 at 08:27 AM..
Reason: Adding keywords
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LEARN ABOUT NETBSD
kdassert
KASSERT(9) BSD Kernel Developer's Manual KASSERT(9)
NAME
KASSERT, KASSERTMSG, KDASSERT, KDASSERTMSG -- kernel expression verification macros
SYNOPSIS
void
KASSERT(expression);
void
KASSERTMSG(expression, format, ...);
void
KDASSERT(expression);
void
KDASSERTMSG(expression, format, ...);
DESCRIPTION
These machine independent assertion-checking macros cause a kernel panic(9) if the given expression evaluates to false. Two compile-time
options(4) define the behavior of the checks.
1. The KASSERT() and KASSERTMSG() tests are included only in kernels compiled with the DIAGNOSTIC configuration option. In a kernel that
does not have this configuration option, the macros are defined to be no-ops.
2. The KDASSERT() and KDASSERTMSG() tests are included only in kernels compiled with the DEBUG configuration option. The KDASSERT() and
KASSERT() macros are identical except for the controlling option (DEBUG vs DIAGNOSTIC). Basically, KASSERT() should be used for
light-weight checks and KDASSERT() should be used for heavier ones.
Callers should not rely on the side effects of expression because, depending on the kernel compile options mentioned above, expression might
not be evaluated at all.
The panic message will display the style of assertion (debugging vs. diagnostic), the expression that failed and the filename, and line num-
ber the failure happened on. The KASSERTMSG() and KDASSERTMSG() macros append to the panic(9) format string the message specified by format
and its subsequent arguments, similar to printf(9) functions.
SEE ALSO
config(1), options(4), CTASSERT(9), panic(9), printf(9)
AUTHORS
These macros were written by Chris G. Demetriou <cgd@netbsd.org>.
BSD
September 27, 2011 BSD