The guilty commit is: 00f634bc522d "asm-generic: add generic futex for !CONFIG_SMP"
And the backtrace: #0 0x00007ffff7866457 in kill () from /lib64/libc.so.6 #1 0x000000006002a454 in uml_abort () at arch/um/os-Linux/util.c:93 #2 0x000000006002a7e5 in os_dump_core () at arch/um/os-Linux/util.c:148 #3 0x000000006001b48a in panic_exit (self=<optimized out>, unused1=<optimized out>, unused2=<optimized out>) at arch/um/kernel/um_arch.c:240 #4 0x000000006004e4df in notifier_call_chain (nl=<optimized out>, val=6, v=0xffffffff, nr_to_call=-1, nr_calls=0x0) at kernel/notifier.c:93 #5 0x000000006004e558 in __atomic_notifier_call_chain (nr_calls=<optimized out>, nr_to_call=<optimized out>, v=<optimized out>, val=<optimized out>, nh=<optimized out>) at kernel/notifier.c:183 #6 atomic_notifier_call_chain (nh=<optimized out>, val=<optimized out>, v=<optimized out>) at kernel/notifier.c:193 #7 0x0000000060238570 in panic (fmt=<optimized out>) at kernel/panic.c:133 #8 0x000000006001ad91 in segv (fi=..., ip=1610803493, is_user=<optimized out>, regs=0x602c1840 <cpu0_irqstack+6208>) at arch/um/kernel/trap.c:218 #9 0x000000006001b0f8 in segv_handler (sig=<optimized out>, unused_si=<optimized out>, regs=<optimized out>) at arch/um/kernel/trap.c:191 #10 0x0000000060029238 in sig_handler_common (sig=11, si=0x602c1d30 <cpu0_irqstack+7472>, mc=<optimized out>) at arch/um/os-Linux/signal.c:44 #11 0x0000000060029304 in sig_handler (sig=<optimized out>, si=<optimized out>, mc=<optimized out>) at arch/um/os-Linux/signal.c:231 #12 0x0000000060028dfd in hard_handler (sig=<optimized out>, si=0x6, p=<optimized out>) at arch/um/os-Linux/signal.c:165 #13 <signal handler called> #14 memcpy () at arch/x86/um/../lib/memcpy_64.S:160 #15 0x000000006001c13d in copy_from_user (to=0x61c49e28, from=<optimized out>, n=<optimized out>) at arch/um/kernel/skas/uaccess.c:145 #16 0x0000000060072618 in futex_atomic_cmpxchg_inatomic (newval=<optimized out>, oldval=<optimized out>, uaddr=<optimized out>, uval=<optimized out>) at include/asm-generic/futex.h:109 #17 cmpxchg_futex_value_locked (curval=0x61c49e28, uaddr=0x0, uval=<optimized out>, newval=<optimized out>) at kernel/futex.c:596 #18 0x0000000060008b70 in futex_detect_cmpxchg () at kernel/futex.c:3020 #19 futex_init () at kernel/futex.c:3043 #20 0x00000000600166ba in do_one_initcall (fn=0x60008adf <futex_init>) at init/main.c:791 Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
