On Sun, Dec 3, 2017 at 5:38 PM, Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote: >>>> Hello, >>>> >>>> syzbot has tested the proposed patch but the reproducer still triggered >>>> crash: >>>> WARNING in kvm_arch_vcpu_ioctl_run >>>> >>>> VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 >>>> reason=80000021 qualification=0000000000000000 >>>> IDTVectoring: info=00000000 errcode=00000000 >>>> TSC Offset = 0xffffffeeb46bc6ac >>>> EPT pointer = 0x00000001ce37601e >>>> WARNING: CPU: 0 PID: 3023 at arch/x86/kvm/x86.c:7293 >>>> kvm_arch_vcpu_ioctl_run+0x213/0x5d20 >>>> Kernel panic - not syncing: panic_on_warn set ... >>>> >>>> CPU: 0 PID: 3023 Comm: syz-executor4 Not tainted 4.14.0-next-20171117+ #9 >>>> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS >>>> Google 01/01/2011 >>>> Call Trace: >>>> dump_stack+0x173/0x237 >>>> panic+0x1e4/0x41c >>>> __warn+0x1d9/0x1f0 >>>> report_bug+0x20a/0x2d0 >>>> fixup_bug.part.10+0x32/0x80 >>>> do_error_trap+0x29c/0x370 >>>> invalid_op+0x18/0x20 >>>> RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5d20 >>>> RSP: 0018:ffff8801ce197680 EFLAGS: 00010293 >>>> RAX: ffff8801ce588440 RBX: ffff8801d5b8f000 RCX: ffffffff810d4003 >>>> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801ce0e02b8 >>>> RBP: ffff8801ce197a50 R08: 0000000000000001 R09: 0000000000000001 >>>> R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 >>>> R13: ffff8801ce0e0168 R14: ffff8801cec10980 R15: ffff8801ce0e0080 >>>> kvm_vcpu_ioctl+0x619/0xf80 >>>> do_vfs_ioctl+0x18b/0x13e0 >>>> SyS_ioctl+0x7e/0xb0 >>>> entry_SYSCALL_64_fastpath+0x1f/0x96 >>>> RIP: 0033:0x452879 >>>> RSP: 002b:00007f4bc97fdbe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 >>>> RAX: ffffffffffffffda RBX: 0000000000000082 RCX: 0000000000452879 >>>> RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000004 >>>> RBP: 00007ffce1993510 R08: 0000000000000000 R09: 0000000000000000 >>>> R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 >>>> R13: 00007ffce199348f R14: 00007f4bc97fe9c0 R15: 0000000000000006 >>>> Dumping ftrace buffer: >>>> (ftrace buffer empty) >>>> Kernel Offset: disabled >>>> Rebooting in 86400 seconds.. >>> >>> I will have a look. >> >> Please have a try. https://lkml.org/lkml/2017/11/20/118 > > Hi Wanpeng, > > Please also follow this part: > >> syzbot will keep track of this bug report. >> Once a fix for this bug is committed, please reply to this email with: >> #syz fix: exact-commit-title >> Note: all commands must start from beginning of the line. > > It will greatly help to keep overall process running. > Thanks still happens, number of crashes crossed 40K we won't know if it's a new bugs or the same issue is still not fixed until you tell syzbot about the fix as it asks
