I do run the fuzzer trinity within a 32 bit user mode linux. With latest git tree I do often get a core dump like the one attached. Although it is the nature of trinity to corrupt the kernel /me wonders why it happens nearly alway at the same place. That's why I decided to just report it here. [New LWP 26743] Core was generated by `/usr/local/bin/linux-v3.11-rc1-214-g6cc1862 earlyprintk ubda=/home/tfoerste/vir'. Program terminated with signal 6, Aborted. #0 0xb77b6424 in __kernel_vsyscall () #0 0xb77b6424 in __kernel_vsyscall () #1 0x083a3245 in kill () #2 0x0807163d in uml_abort () at arch/um/os-Linux/util.c:93 #3 0x08071925 in os_dump_core () at arch/um/os-Linux/util.c:138 #4 0x080613a7 in panic_exit (self=0x85a1518 <panic_exit_notifier>, unused1=0, unused2=0x85d6ce0 <buf.15904>) at arch/um/kernel/um_arch.c:240 #5 0x0809d588 in notifier_call_chain (nl=0x0, val=0, v=0x85d6ce0 <buf.15904>, nr_to_call=-2, nr_calls=0x0) at kernel/notifier.c:93 #6 0x0809d6d3 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:182 #7 atomic_notifier_call_chain (nh=0x85d6cc4 <panic_notifier_list>, val=0, v=0x85d6ce0 <buf.15904>) at kernel/notifier.c:191 #8 0x08400a28 in panic (fmt=0x0) at kernel/panic.c:128 #9 0x0818a4b5 in ext4_orphan_add (handle=0x47870000, inode=0x47a06c60) at fs/ext4/namei.c:2571 #10 0x0818a6e5 in ext4_tmpfile (dir=0x479f5380, dentry=0x47a4b4d0, mode=0) at fs/ext4/namei.c:2319 #11 0x0810b7af in do_tmpfile (opened=<optimized out>, file=<optimized out>, op=<optimized out>, flags=<optimized out>, nd=<optimized out>, pathname=<optimized out>, dfd=<optimized out>) at fs/namei.c:2938 #12 path_openat (dfd=1201623936, pathname=0x47ce9040, nd=0x46effde4, op=0x46effe70, flags=67) at fs/namei.c:2981 #13 0x0810bcb1 in do_filp_open (dfd=-100, pathname=0x47ce9040, op=0x46effe70) at fs/namei.c:3043 #14 0x080fe5f8 in do_sys_open (dfd=0, filename=0x0, flags=4841986, mode=0) at fs/open.c:954 #15 0x080fe6c8 in SYSC_open (mode=<optimized out>, flags=<optimized out>, filename=<optimized out>) at fs/open.c:972 #16 SyS_open (filename=135073872, flags=4841986, mode=3127) at fs/open.c:967 #17 0x080618e2 in handle_syscall (r=0x46e0c7d4) at arch/um/kernel/skas/syscall.c:35 #18 0x08073c0d in handle_trap (local_using_sysemu=<optimized out>, regs=<optimized out>, pid=<optimized out>) at arch/um/os-Linux/skas/process.c:198 #19 userspace (regs=0x46e0c7d4) at arch/um/os-Linux/skas/process.c:431 #20 0x0805e65c in fork_handler () at arch/um/kernel/process.c:160 #21 0x00000000 in ?? () -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
