Implemented support for 16k stack size that was introduced by commit 6538b8ea886e472f4431db8ca1d60478f838d14b titled "x86_64: expand kernel stack to 16K". Without the patch, kernels has 16k stack, leading to errors in commands such as "bt" and any command regarding 8K stack. Add a new "--machdep stacksize=<value>" option that can be used to override the default machdep->stacksize value which is 8k.
Signed-off-by: Sean Fu <[email protected]> --- x86_64.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/x86_64.c b/x86_64.c index 7d01140..1798f05 100644 --- a/x86_64.c +++ b/x86_64.c @@ -5716,6 +5716,15 @@ parse_cmdline_args(void) continue; } } + } else if (STRNEQ(arglist[i], "stacksize=")) { + p = arglist[i] + strlen("stacksize="); + if (strlen(p)) { + value = stol(p, RETURN_ON_ERROR|QUIET, &errflag); + if (!errflag) { + machdep->stacksize = value; + continue; + } + } } error(WARNING, "ignoring --machdep option: %s\n", arglist[i]); -- 2.6.2 -- Crash-utility mailing list [email protected] https://www.redhat.com/mailman/listinfo/crash-utility
