From: Christopher Alexander Tobias Schulze <cat.schulze@xxxxxxxxxxxxx> Date: Sun, 27 Jul 2014 17:31:00 +0200 > Note that dumping a stack trace also involves flushing all register windows > out to the stack, so the fact that we observed the segfault and RSS problem > only in combination with the instrumentation patch (but not with the patch > that just prevents invalid entries to be inserted into the TSB, with no further > actions) could also point in this direction. User register windows should be fully flushed to the stack before we try to copy the address space, via the "flushw" done in the sys_vfork/sys_fork/sys_clone assembler paths of arch/sparc/kernel/syscalls.S -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
