On Wed, Sep 30, 2015 at 12:13 PM, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > On Wed, 30 Sep 2015 11:46:31 +0200 > Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > >> On Wed, Sep 30, 2015 at 10:56 AM, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: >> > On Wed, 30 Sep 2015 09:35:23 +0200 (CEST) >> > Jiri Kosina <jikos@xxxxxxxxxx> wrote: >> > >> > >> >> [ ... snip a lot of stuff ... ] >> >> > What shall I do... play with lockdep (print_irqtrace_events) in >> >> > del_timer_sync()? >> > >> > Also, do you have PARAVIRT enabled by chance? >> > >> >> Yes. >> >> CONFIG_PARAVIRT=y >> >> Is that the corresponding indicator in dmesg-log? >> >> [ 0.000000] Booting paravirtualized kernel on bare hardware >> >> What is your suspicion, Lt. Columbo? >> > > Heh, I loved that show. > > Can you see if you still have the issue if you disable that. PARAVIRT > adds a bit of magic when run on baremetal. See > arch/x86/kernel/alterative.c. On boot up, things like disabling > interrupts, which are originally compiled to perform a function call, > that on a virtual machine would do hypervisor calls into the host, and > on baremetal does the real code. But that alterative.c file will do > live patching of the code to not do the function call but instead do > the real work in place (if it can). > > Something tells me that with clang, things are not as they're expected, > and perhaps the modification isn't working. > LOL, there is a LLVM(Linux) bug reported in that area - that's why arch_hweight() is disabled etc. I have the bug-no not at hand. I am not in front of my machine right now. - sed@ CSI Tuebingen/Germany - -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
