Le 27/07/2017 à 01:41, David Miller a écrit : > From: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx> > Date: Fri, 21 Jul 2017 16:28:01 +0200 > >> When running the attached, statically linked binary on a recent >> kernel, the kernel locks up with: > > Thanks a lot, as soon as I sort through the RCU stall bug I'll take > a close look at this! > Hi David, is this responsible for the fact that sometimes my bash sleep commands do not return after the argument given time is elapsed? Is there a way to 'shake' the system? I do have a lot of INFO: rcu_sched detected stalls on CPUs/tasks messages in dmesg output, but I do not see directly any user program that is causing the problem in the output. There are however a lot of segfault reports that are generated by the Free Pascal sparc64 testuite runs, on Debian stadler machine. Are the two related? Could this be useful for you to debug the problem? Pierre Muller -- 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