| Message ID | 1311556514-24728-1-git-send-email-sboyd@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, 24 Jul 2011 18:15:14 -0700 Stephen Boyd wrote: > Usually kernel parameters are documented in kernel-parameters.txt > but user_debug is only documented in the Kconfig. Document the > option and point to the Kconfig help text for more info. > > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> > Cc: Russell King <linux@arm.linux.org.uk> Is this a superset of 'print_fatal_signals'? Applied, thanks. > --- > Documentation/kernel-parameters.txt | 10 ++++++++++ > 1 files changed, 10 insertions(+), 0 deletions(-) > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > index aa47be7..8186adc 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -2612,6 +2612,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted. > medium is write-protected). > Example: quirks=0419:aaf5:rl,0421:0433:rc > > + user_debug= [KNL,ARM] > + Format: <int> > + See arch/arm/Kconfig.debug help text. > + 1 - undefined instruction events > + 2 - system calls > + 4 - invalid data aborts > + 8 - SIGSEGV faults > + 16 - SIGBUS faults > + Example: user_debug=31 > + > userpte= > [X86] Flags controlling user PTE allocations. > > -- > Sent by an employee of the Qualcomm Innovation Center, Inc. > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code ***
On Mon, Jul 25, 2011 at 02:29:24PM -0700, Randy Dunlap wrote: > On Sun, 24 Jul 2011 18:15:14 -0700 Stephen Boyd wrote: > > > Usually kernel parameters are documented in kernel-parameters.txt > > but user_debug is only documented in the Kconfig. Document the > > option and point to the Kconfig help text for more info. > > > > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> > > Cc: Russell King <linux@arm.linux.org.uk> > > Is this a superset of 'print_fatal_signals'? > > Applied, thanks. > > > --- > > Documentation/kernel-parameters.txt | 10 ++++++++++ > > 1 files changed, 10 insertions(+), 0 deletions(-) > > > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > > index aa47be7..8186adc 100644 > > --- a/Documentation/kernel-parameters.txt > > +++ b/Documentation/kernel-parameters.txt > > @@ -2612,6 +2612,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted. > > medium is write-protected). > > Example: quirks=0419:aaf5:rl,0421:0433:rc > > > > + user_debug= [KNL,ARM] > > + Format: <int> > > + See arch/arm/Kconfig.debug help text. > > + 1 - undefined instruction events > > + 2 - system calls linux$ git grep UDBG_SYSCALL -- arch/arm/ include/asm/system.h:#define UDBG_SYSCALL (1 << 1) kernel/traps.c: if (user_debug & UDBG_SYSCALL) { kernel/traps.c: if (user_debug & UDBG_SYSCALL) { Looking at kernel/traps.c, it looks like only undefined or obsolete syscalls are logged. It could be worth clarifying this in the wording, both here and in arch/arm/Kconfig.debug. Cheers ---Dave > > + 4 - invalid data aborts > > + 8 - SIGSEGV faults > > + 16 - SIGBUS faults > > + Example: user_debug=31 > > + > > userpte= > > [X86] Flags controlling user PTE allocations. > > > > -- > > Sent by an employee of the Qualcomm Innovation Center, Inc. > > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. > > --- > ~Randy > *** Remember to use Documentation/SubmitChecklist when testing your code *** > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index aa47be7..8186adc 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2612,6 +2612,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted. medium is write-protected). Example: quirks=0419:aaf5:rl,0421:0433:rc + user_debug= [KNL,ARM] + Format: <int> + See arch/arm/Kconfig.debug help text. + 1 - undefined instruction events + 2 - system calls + 4 - invalid data aborts + 8 - SIGSEGV faults + 16 - SIGBUS faults + Example: user_debug=31 + userpte= [X86] Flags controlling user PTE allocations.
Usually kernel parameters are documented in kernel-parameters.txt but user_debug is only documented in the Kconfig. Document the option and point to the Kconfig help text for more info. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Russell King <linux@arm.linux.org.uk> --- Documentation/kernel-parameters.txt | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-)