[Skiboot] [PATCH v4 01/18] libstb/secureboot: use platform.terminate instead of hard abort
oohall at gmail.com
Tue May 12 13:49:06 AEST 2020
On Mon, 2020-05-11 at 16:31 -0500, Eric Richter wrote:
> Halting the boot via an abort() call will cause the BMC to keep
> restarting the machine indefinitely.
The BMC is supposed to detect the host bootlooping and stop powering it
on after 5 or so.
> Ending via platform.terminate()
> should be cleaner and prevent needless bootloops.
abort() is a #defined as assert(0) which results in a call to
void __noreturn assert_fail(const char *msg, const char *file,
unsigned int line, const char *function)
static bool in_abort = false;
for (;;) ;
in_abort = true;
/* snip comment */
prlog(PR_EMERG, "assert failed at %s:%u: %s\n", file, line, msg);
/* Save crashing CPU details */
for (;;) ;
So I'm not really seeing how this is an improvement. The terminate
callback is usually ipmi_terminate() which will also trigger an MPIPL
on the systems which support it. That might be the cause of your boot
Vasant, do you have anything to add?
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