kernel panic at kern/arch/x86/trap.c:309, from core 1: Proc-ful Page Fault in thProc-ful Page Fault in the Kernel eat 0x000000000000001b![kernel]  Vcoreid 134217728 unsafe! ((too big?)
toaf[kernel] Vcoreid 134217728 unsafe! (too big?)
e! (too big?)
17:55:04 executing program 7:
openat$net_tcp_2_status(0xffffffffffffff9c, &(0x7f0000000040)='/net/tcp/2/status\x00', 0x12, 0x1, 0x0)
openat$dev_osversion(0xffffffffffffff9c, &(0x7f0000000000)='/dev/osversion\x00', 0xf, 0x1, 0x0)
r0 = openat$proc_self_ctl(0xffffffffffffff9c, &(0x7f0000000140)='/proc/self/ctl\x00', 0xf, 0x3, 0x0)
fstat(r0, &(0x7f0000000280))
openat$proc_self_syscall(0xffffffffffffff9c, &(0x7f0000000100)='/proc/self/syscall\x00', 0x13, 0x1, 0x0)
00000001b!
HW TRAP frame at 0xfffffff000109d30 on core 1
  rax  0x0000000000000000
  rbx  0xffff8000159d4ae0
  rcx  0xfffffff000109ea0
  rdx  0xfffffff000109d6c
  rbp  0xfffffff000109e38
  rsi  0x0000000000000000
  rdi  0xfffffff000109ea0
  r8   0x0000000000000001
  r9   0xffffffffc8790880
  r10  0x0000000000000030
  r11  0xffff800014e4d420
  r12  0xffff800002182ac0
  r13  0x0000000020000080
  r14  0x0000000000000073
  r15  0x0000000000000032
  trap 0x0000000e Page Fault
  gsbs 0xffffffffc8667c40
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc20583b4
  cs   0x------------0008
  flag 0x0000000000010246
  rsp  0xfffffff000109df8
  ss   0x------------0010
Backtrace of kernel context on Core 1:
#01 [<0xffffffffc20583b4>] in sys_readlink at src/syscall.c:2037
#02 [<0xffffffffc20593c9>] in syscall at src/syscall.c:2528
#03 [<0xffffffffc2059584>] in run_local_syscall at src/syscall.c:2563
#04 [<0xffffffffc2059ab9>] in prep_syscalls at src/syscall.c:2583
#05 [<0xffffffffc20ab29a>] in sysenter_callwrapper at arch/x86/trap.c:851
kernel panic at kern/arch/x86/trap.c:309, from core 2: Proc-ful Page Fault in the Kernel at 0x00000002deadbac6!
HW TRAP frame at 0xfffffff0000cad00 on core 2
  rax  0x0000000000000001
  rbx  0x00000002deadbabe
  rcx  0x0000000000000002
  rdx  0x00000002deadbac6
  rbp  0xfffffff0000cadc8
  rsi  0x00000000ffffffff
  rdi  0x00000002deadbac6
  r8   0x0000000000000000
  r9   0x0000000000000000
  r10  0x000010000000a4c0
  r11  0x0000000000000206
  r12  0xffff800014ea4e60
  r13  0x00000000ffffffff
  r14  0x0000000000000002
  r15  0xffff800014ea4ac0
  trap 0x0000000e Page Fault
  gsbs 0xffffffffc8667ec0
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc2007b17
  cs   0x------------0008
  flag 0x0000000000010206
  rsp  0xfffffff0000cadc8
  ss   0x------------0010
Backtrace of kernel context on Core 2:
#01 [<0xffffffffc2007b17>] in kref_put at include/kref.h:67
#02 [<0xffffffffc2007e96>] in remove_fd_tap at src/fdtap.c:136
#03 [<     [inline]     >] in handle_tap_req at src/syscall.c:2391
#03 [<0xffffffffc205870c>] in sys_tap_fds at src/syscall.c:2411
#04 [<0xffffffffc20593c9>] in syscall at src/syscall.c:2528
#05 [<0xffffffffc2059584>] in run_local_syscall at src/syscall.c:2563
#06 [<0xffffffffc2059ab9>] in prep_syscalls at src/syscall.c:2583
#07 [<0xffffffffc20ab29a>] in sysenter_callwrapper at arch/x86/trap.c:851
17:55:10 executing program 2:
r0 = openat$net_tcp_0_data(0xffffffffffffff9c, &(0x7f0000000000)='/net/tcp/0/data\x00', 0x10, 0x3, 0x0)
fstat(r0, &(0x7f0000000140))
tcgetattr(r0, &(0x7f0000000080))
openat$net_ether0_1_ifstats(0xffffffffffffff9c, &(0x7f0000000040)='/net/ether0/1/ifstats\x00', 0x16, 0x1, 0x0)
__get_km_tag bad canary: 00000000@0xffff800014f96018, buf 0xffff800014f96020, expected deadbabe
8ffff800014f96000:f 000f800014f96000:ected deadbabe
 20E 00 00ntering Nanwan's Dungeon on Cor e 1 (Ints off):
 pT00e 'help' for a list of commands.
 ROS(Core 1)> OS  00(Cor0e 10) 00> 01 a 00nwa 00n 00' 00s Dungeon on Core 2  00( Ints off):
0p 00  . ..............
ffff800014f96010: 40 a7 00 c2 ff ff ff ff 00 00 00 00 00 00 00 00  @...............
ffff800014f96020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
...
ffff800014f96070: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
ffff800014f96080: 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
ffff800014f96090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
...
kernel panic at kern/src/kmalloc.c:138, from core 0: Bad canary
Stack Backtrace on Core 0:
#01 [<0xffffffffc200a3e7>] in backtrace at src/kdebug.c:219
#02 [<0xffffffffc2009bb2>] in _panic at src/init.c:273
#03 [<0xffffffffc200a816>] in __get_km_tag at src/kmalloc.c:138
#04 [<0xffffffffc200ac0b>] in kfree at src/kmalloc.c:236
#05 [<     [inline]     >] in free_fd_set at src/ns/sysfile.c:1690
#05 [<0xffffffffc2041b1c>] in close_fdt at src/ns/sysfile.c:1833
#06 [<0xffffffffc204cfdf>] in proc_destroy at src/process.c:918
#07 [<0xffffffffc2056cc6>] in sys_proc_destroy at src/syscall.c:909
#08 [<0xffffffffc20593c9>] in syscall at src/syscall.c:2528
#09 [<0xffffffffc2059584>] in run_local_syscall at src/syscall.c:2563
#10 [<0xffffffffc2059ab9>] in prep_syscalls at src/syscall.c:2583
#11 [<0xffffffffc20ab29a>] in sysenter_callwrapper at arch/x86/trap.c:851