====================================== | [ 9.880323] #PF: supervisor read access in kernel mode | [ 9.880361] #PF: error_code(0x0000) - not-present page | [ 9.880399] PGD 87d5067 P4D 87d5067 PUD 87ce067 PMD 0 | [ 9.880446] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI [ 9.880545] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.880595] RIP: 0010:ets_class_leaf (net/sched/sch_ets.c:273) sch_ets [ 9.880641] Code: f6 74 25 8b 87 a0 01 00 00 48 39 c6 73 1a 48 8d 44 b6 fb 48 c1 e0 04 48 8d 84 07 c0 01 00 00 48 8b 40 10 c3 cc cc cc cc 31 c0 <48> 8b 40 10 c3 cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90 All code ======== 0: f6 74 25 8b divb -0x75(%rbp,%riz,1) 4: 87 a0 01 00 00 48 xchg %esp,0x48000001(%rax) a: 39 c6 cmp %eax,%esi c: 73 1a jae 0x28 e: 48 8d 44 b6 fb lea -0x5(%rsi,%rsi,4),%rax 13: 48 c1 e0 04 shl $0x4,%rax 17: 48 8d 84 07 c0 01 00 lea 0x1c0(%rdi,%rax,1),%rax 1e: 00 1f: 48 8b 40 10 mov 0x10(%rax),%rax 23: c3 ret 24: cc int3 25: cc int3 26: cc int3 27: cc int3 28: 31 c0 xor %eax,%eax 2a:* 48 8b 40 10 mov 0x10(%rax),%rax <-- trapping instruction 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: 66 90 xchg %ax,%ax 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 48 8b 40 10 mov 0x10(%rax),%rax 4: c3 ret 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: 66 90 xchg %ax,%ax b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 9.880769] RSP: 0018:ffffb1fc8037b9e0 EFLAGS: 00010246 [ 9.880808] RAX: 0000000000000000 RBX: ffffb1fc8037bb60 RCX: 0000000000000002 [ 9.880865] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff894282e74000 [ 9.880921] RBP: ffff894282e74000 R08: 0000000000000438 R09: ffffb1fc8037bb60 [ 9.880978] R10: ffffb1fc8037ba08 R11: 0000000000000011 R12: ffff894282e75800 [ 9.881033] R13: 0000000000100003 R14: ffffffff8b12a340 R15: ffff894281c3e000 [ 9.881098] FS: 00007fef9c240800(0000) GS:ffff8942bed80000(0000) knlGS:0000000000000000 [ 9.881157] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.881206] CR2: 0000000000000010 CR3: 00000000087fc005 CR4: 0000000000772ef0 [ 9.881263] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 9.881319] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 9.881374] PKRU: 55555554 [ 9.881392] Call Trace: [ 9.881412] [ 9.881433] ? __die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434) [ 9.881470] ? page_fault_oops (arch/x86/mm/fault.c:715) [ 9.881505] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539) [ 9.881548] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) [ 9.881598] ? ets_class_leaf (net/sched/sch_ets.c:273) sch_ets [ 9.881652] tc_modify_qdisc (net/sched/sch_api.c:1642) [ 9.881699] rtnetlink_rcv_msg (net/core/rtnetlink.c:6920) [ 9.881735] ? __pfx_simple_copy_to_iter (net/core/datagram.c:523) [ 9.881779] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814) [ 9.881819] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 9.881854] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 9.881888] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 9.881921] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2596) [ 9.881955] ? copy_msghdr_from_user (net/socket.c:2536) [ 9.881995] ___sys_sendmsg (net/socket.c:2652) [ 9.882026] ? ___sys_recvmsg (net/socket.c:2861) [ 9.882058] __sys_sendmsg (net/socket.c:2682) [ 9.882096] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 9.882128] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 9.882168] RIP: 0033:0x7fef9c5689a7 [ 9.882198] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 9.882324] RSP: 002b:00007ffc2d351618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 9.882380] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fef9c5689a7 [ 9.882438] RDX: 0000000000000000 RSI: 00007ffc2d351680 RDI: 0000000000000005 [ 9.882493] RBP: 000000000047d8c0 R08: 0000000000000014 R09: 0000000000000000 [ 9.882548] R10: 00007fef9c421708 R11: 0000000000000246 R12: 00007ffc2d361960 Finger prints: ets_class_leaf:tc_modify_qdisc:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast