http://bugzilla.suse.com/show_bug.cgi?id=1042878 Bug ID: 1042878 Summary: [4.12-rc] Kernel panic: Couldn't open N_TTY ldisc for ptm1 --- error -12. Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: jslaby@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 727789 --> http://bugzilla.suse.com/attachment.cgi?id=727789&action=edit syzkaller reproducer pps pps0: new PPS source pty_master1 pps_ldisc: cannot open tty ldisc "/dev/ptm1" Kernel panic - not syncing: Couldn't open N_TTY ldisc for ptm1 --- error -12. CPU: 2 PID: 3623 Comm: syz-executor2 Not tainted 4.12.0-rc4-0.g723b913-syzkaller #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.0.0-prebuilt.qemu-project.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x115/0x1de lib/dump_stack.c:52 panic+0x1df/0x48b kernel/panic.c:180 tty_set_ldisc+0x75d/0xa00 drivers/tty/tty_ldisc.c:523 tty_ioctl+0x86c/0x18f0 drivers/tty/tty_io.c:2166 vfs_ioctl fs/ioctl.c:45 [inline] do_vfs_ioctl+0x1cf/0x17f0 fs/ioctl.c:685 SYSC_ioctl fs/ioctl.c:700 [inline] SyS_ioctl+0x94/0xc0 fs/ioctl.c:691 entry_SYSCALL_64_fastpath+0x23/0xc2 RIP: 0033:0x7f53b8c11b89 RSP: 002b:00007f53b9158c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000056188bbaa0a8 RCX: 00007f53b8c11b89 RDX: 0000000020a54ffc RSI: 0000000000005423 RDI: 0000000000000006 RBP: 0000000000000046 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa146122e R13: 00007fffa146122f R14: 00007f53b9159700 R15: 0000000000000000 Kernel Offset: 0x15000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Rebooting in 90 seconds.. -- You are receiving this mail because: You are on the CC list for the bug.