[ 549.058124] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 549.060152] Dumping ftrace buffer: [ 549.060219] (ftrace buffer empty) [ 549.062191] Modules linked in: [ 549.062191] CPU: 19 PID: 16330 Comm: modprobe Not tainted +3.19.0-rc5-next-20150123-sasha-00061-g527ff0d-dirty #1813 [ 549.062191] task: ffff880399620000 ti: ffff88039bec0000 task.ti: +ffff88039bec0000 [ 549.062191] RIP: prepend_path (fs/dcache.c:2864) [ 549.062191] RSP: 0018:ffff88039bec7748 EFLAGS: 00010202 [ 549.062191] RAX: 0000000000000004 RBX: 0000000000000000 RCX: 1ffff10000003733 [ 549.062191] RDX: ffff88003deb79c0 RSI: ffff88039bec7858 RDI: ffff88003deb4eb0 [ 549.062191] RBP: ffff88039bec7908 R08: dffffc0000000000 R09: 0000000000000000 [ 549.062191] R10: ffff88039bec7648 R11: 0000000000000004 R12: 0000000000000020 [ 549.062191] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88039bec79c8 [ 549.062191] FS: 0000000000000000(0000) GS:ffff8805f8800000(0000) +knlGS:0000000000000000 [ 549.062191] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 549.062191] CR2: 00007f8a3989d4a0 CR3: 00000006b1a55000 CR4: 00000000000006a0 [ 549.062191] DR0: a800000010000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 549.062191] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 [ 549.062191] Stack: [ 549.062191] ffffffff81c35e2b ffff880399620cf0 0000000041b58ab3 +ffffffff95ab8e78 [ 549.062191] ffff88039bec79d0 1ffff100737d8ef7 ffff8805da69b758 +ffffed00737d8f39 [ 549.062191] ffff88039bec7964 ffff88039bec7988 ffff8805da69b750 +ffffed00737d8f3a [ 549.062191] Call Trace: [ 549.111668] d_path (fs/dcache.c:2987 fs/dcache.c:3044) [ 549.111668] perf_event_mmap (kernel/events/core.c:5435 +kernel/events/core.c:5560) [ 549.111668] mmap_region (mm/mmap.c:1207 mm/mmap.c:1650) [ 549.111668] do_mmap_pgoff (mm/mmap.c:1393) [ 549.111668] vm_mmap_pgoff (mm/util.c:335) [ 549.111668] SyS_mmap_pgoff (mm/mmap.c:1443 mm/mmap.c:1401) [ 549.111668] SyS_mmap (arch/x86/kernel/sys_x86_64.c:70) [ 549.111668] tracesys_phase2 (arch/x86/kernel/entry_64.S:530) [ 549.111668] Code: c7 07 0f 85 cc 00 00 00 48 39 d3 0f 84 cc 01 00 00 4d 85 e4 +0f 84 90 08 00 00 41 f6 c4 07 0f 85 86 08 00 00 4c 89 e0 48 c1 e8 03 <42> 80 3c +30 00 0f 85 96 08 00 00 49 3b 1c 24 0f 84 2d 01 00 00