Hi! Am 10.12.2014 um 11:46 schrieb Miklos Szeredi: > The guilty commit is: > > 00f634bc522d "asm-generic: add generic futex for !CONFIG_SMP"
Thanks a lot Miklos! Your bisecting faster than I do. Let's dig into the issue! Thanks, //richard > 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 > ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
