tty: USB tty devices can block in tcdrain when unplugged

[pandora-kernel.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index ee5a5f9..a2d8805 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -89,6 +89,7 @@ parameter is applicable:
        SPARC   Sparc architecture is enabled.
        SWSUSP  Software suspend (hibernation) is enabled.
        SUSPEND System suspend states are enabled.
+       FTRACE  Function tracing enabled.
        TS      Appropriate touchscreen support is enabled.
        USB     USB support is enabled.
        USBHID  USB Human Interface Device support is enabled.
@@ -753,6 +754,14 @@ and is between 256 and 4096 characters. It is defined in the file
                        parameter will force ia64_sal_cache_flush to call
                        ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
 
+       ftrace=[tracer]
+                       [ftrace] will set and start the specified tracer
+                       as early as possible in order to facilitate early
+                       boot debugging.
+
+       ftrace_dump_on_oops
+                       [ftrace] will dump the trace buffers on oops.
+
        gamecon.map[2|3]=
                        [HW,JOY] Multisystem joystick and NES/SNES/PSX pad
                        support via parallel port (up to 5 devices per port)
@@ -814,6 +823,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
        hlt             [BUGS=ARM,SH]
 
+       hvc_iucv=       [S390] Number of z/VM IUCV Hypervisor console (HVC)
+                              back-ends. Valid parameters: 0..8
+
        i8042.debug     [HW] Toggle i8042 debug mode
        i8042.direct    [HW] Put keyboard port into non-translated mode
        i8042.dumbkbd   [HW] Pretend that controller can only read data from
@@ -1465,6 +1477,10 @@ and is between 256 and 4096 characters. It is defined in the file
                        instruction doesn't work correctly and not to
                        use it.
 
+       no_file_caps    Tells the kernel not to honor file capabilities.  The
+                       only way then for a file to be executed with privilege
+                       is to be setuid root or executed by root.
+
        nohalt          [IA-64] Tells the kernel not to use the power saving
                        function PAL_HALT_LIGHT when idle. This increases
                        power-consumption. On the positive side, it reduces
@@ -2192,6 +2208,9 @@ and is between 256 and 4096 characters. It is defined in the file
        st=             [HW,SCSI] SCSI tape parameters (buffers, etc.)
                        See Documentation/scsi/st.txt.
 
+       stacktrace      [FTRACE]
+                       Enabled the stack tracer on boot up.
+
        sti=            [PARISC,HW]
                        Format: <num>
                        Set the STI (builtin display/keyboard on the HP-PARISC
@@ -2276,6 +2295,14 @@ and is between 256 and 4096 characters. It is defined in the file
                        See comment before function dc390_setup() in
                        drivers/scsi/tmscsim.c.
 
+       topology=       [S390]
+                       Format: {off | on}
+                       Specify if the kernel should make use of the cpu
+                       topology informations if the hardware supports these.
+                       The scheduler will make use of these informations and
+                       e.g. base its process migration decisions on it.
+                       Default is off.
+
        tp720=          [HW,PS2]
 
        trix=           [HW,OSS] MediaTrix AudioTrix Pro