2018/07/16 18:14:23 fuzzer started
2018/07/16 18:14:23 dialing manager at 127.0.0.1:37389
2018/07/16 18:14:23 syscalls: 69
2018/07/16 18:14:23 code coverage: support is not implemented in syzkaller
2018/07/16 18:14:23 comparison tracing: support is not implemented in syzkaller
2018/07/16 18:14:23 setuid sandbox: support is not implemented in syzkaller
2018/07/16 18:14:23 namespace sandbox: support is not implemented in syzkaller
2018/07/16 18:14:23 fault injection: support is not implemented in syzkaller
2018/07/16 18:14:23 leak checking: support is not implemented in syzkaller
2018/07/16 18:14:23 net packed injection: support is not implemented in syzkaller
2018/07/16 18:14:23 net device setup: support is not implemented in syzkaller
18:14:23 executing program 0:
vmm_ctl$VMM_CTL_GET_FLAGS(0x3)
r0 = proc_create(&(0x7f0000000000)='./file0\x00', 0x8, &(0x7f0000000040)='.\x00', 0x2, 0x1)
poke_ksched(r0, 0x0)
pop_ctx(&(0x7f0000000080)="3f003611362bca2a91b0b78199a5a043f10b62f0bdb2a0bca0ded11bca828639f126f9fa95577fb5c623e958bc99f045fa0dfe30bde907fedd7134a0a8ccacdc11011a2691d6950de67fc7e57dcaffa1491b7e38e0856d0eec2379376c096fb51733265d36923a40d4b18fce691e1442ab72e743bba1d2daa72c25a835d40f1dff58aac8b4c2811f4f34654b26e2484398f3ea3cd5847d3c18deee80a089200c9b8a119d19e040b775039a1b9f555d25a757c2f1984f78ee338f13caed191de2f6f502e1cee50eb18f482e8557cc30bebc329010d303734e")
lstat(&(0x7f0000000180)='./file0\x00', 0x8, &(0x7f00000001c0))
stat(&(0x7f0000000240)='./file0\x00', 0x8, &(0x7f0000000280))
lstat(&(0x7f0000000300)='./file0\x00', 0x8, &(0x7f0000000340))
wstat(&(0x7f00000003c0)='./file0/file0\x00', 0xe, &(0x7f0000000400)=""/218, 0xda, 0x0)
r1 = fcntl$F_DUPFD(0xffffffffffffff9c, 0x0, 0xffffffffffffff9c, 0x0)
fcntl$F_GETFL(r1, 0x3)
wstat(&(0x7f0000000500)='./file0/file0\x00', 0xe, &(0x7f0000000540)=""/86, 0x56, 0x0)
symlink(&(0x7f00000005c0)='./file0/file0\x00', 0xe, &(0x7f0000000600)='./file0/file0\x00', 0xe)
fwstat(r1, &(0x7f0000000640)=""/209, 0xd1, 0x0)
unlink(&(0x7f0000000740)='./file0/file0\x00', 0xe)
close(r1)
block(0x4)
symlink(&(0x7f0000000780)='./file1\x00', 0x8, &(0x7f00000007c0)='./file0\x00', 0x8)
nmount(r1, &(0x7f0000000800)='./file0/file0\x00', 0xe, 0x4)
fcntl$F_GETFD(r1, 0x1)
link(&(0x7f0000000840)='./file1\x00', 0x8, &(0x7f0000000880)='./file0\x00', 0x8)
r2 = fcntl$F_DUPFD(r1, 0x0, r1, 0x0)
abort_sysc_fd(r1)
exec(&(0x7f00000008c0)='./file1\x00', 0x8, &(0x7f0000000900)='.,\x00', 0x3)
unlink(&(0x7f0000000940)='./file1\x00', 0x8)
wstat(&(0x7f0000000980)='./file0\x00', 0x8, &(0x7f00000009c0)=""/125, 0x7d, 0x0)
mkdir(&(0x7f0000000a40)='./file1\x00', 0x8, 0x0)
fcntl$F_SETFD(r1, 0x2, 0x1)
openat(r2, &(0x7f0000000a80)='./file0/file0\x00', 0xe, 0x10901, 0x1c0)
change_vcore(0xffffffffffffadae, 0x0)
nbind(&(0x7f0000000ac0)='./file1\x00', 0x8, &(0x7f0000000b00)='./file1\x00', 0x8, 0x0)

18:14:23 executing program 1:
proc_yield(0x1)
fork()
block(0x3ff)
r0 = fcntl$F_DUPFD(0xffffffffffffff9c, 0x0, 0xffffffffffffffff, 0x0)
abort_sysc_fd(r0)
nanosleep(&(0x7f0000000000)={0x4, 0x3}, &(0x7f0000000040))
r1 = fcntl$F_DUPFD(r0, 0x0, r0, 0x1)
tap_fds(&(0x7f0000000500)=[{r0, 0x3, 0x11, 0x80, &(0x7f0000000100)={&(0x7f0000000080)="1e720e04a7feb4e6191ace174127a022afca1cf0524bf3e962a44e79134030465fa40e70b919d2796c8e761e0e6d042fac9380c91d9a8897923969600230d3d547a72bd82604446ae369b28ea5d4f6e4", 0x7ff, 0x1, 0x8, 0x2, 0x7ff}}, {r1, 0x3, 0x104, 0x680e, &(0x7f00000001c0)={&(0x7f0000000140)="66455a0370855863d5aa58114668c601818bd0f442f6ed9c5a510553026d23882b071481c1df9fc0ea3d9eb9bd35c5c93b23a5671a4e3b4a486da2583a7e55987ed287b670aaf081e68a532cd4f659be", 0xd4d, 0x0, 0x3, 0x8, 0x400000}}, {r0, 0x3, 0x80, 0x8000, &(0x7f0000000280)={&(0x7f0000000200)="994104183fa6e6dda1d0d2719f52b88fc34109e6b623dcaa36f18c04dce2dd83d4562bb5165ada1bead490648db6cac87a0fc5d08318ecc60dd0a8e5b622b2c0a30ed3f740aecc545789277554a25e26", 0x3, 0x0, 0x2, 0x100000000, 0x3}}, {r1, 0x2, 0x707, 0xf80000000, &(0x7f0000000340)={&(0x7f00000002c0)="613ecc15d304ec02bd1416b88f5eca3a08510055df52b66ce78b5d456f7d2cb23bb4852a97148b51a1625f81264c1f9eb22f075745956523985bc04390d9825f28c2707d31abe4199bbc2090c7d62029", 0xa, 0x0, 0x8, 0x7, 0xfffffffffffff001}}, {r1, 0x3, 0x400, 0xffffffffffffff7f, &(0x7f0000000400)={&(0x7f0000000380)="df2bf811cb31b9c7e4418b14ce2fefc4f9fcc2606de8b90e1fbe45fbe81331590ff9bd4b9d29bc83ed86f232c82c2a1ad0af3922fe3b21eca60131b33e4b956c2b97de78a04f98fa11a8174ced07be95", 0x8, 0x0, 0x6, 0xc5d, 0x3}}, {r0, 0x0, 0x203, 0x800, &(0x7f00000004c0)={&(0x7f0000000440)="61a837f4345bf7368a8429cd2257e1b18dd94bd2636e9feb1aab17dae4185b2273c77cc9ae26f739a4665bfed72af7214e0c2d105bc2afc2346b4d954f8a73aa24687ead69aa77189ad8112a447f8b48", 0x0, 0x0, 0x3, 0x8, 0x2}}], 0x6)
access(&(0x7f00000005c0)='./file0\x00', 0x8, 0x0)
llseek(r1, 0x7, 0xca7, &(0x7f0000000600), 0x3)
block(0x9)
fstat(r0, &(0x7f0000000640))
mmap(&(0x7f0000ffa000/0x3000)=nil, 0x3000, 0x2000000, 0x4111, 0xffffffffffffffff, 0x9)
fcntl$F_SETFL(r0, 0x4, 0x80000)
r2 = openat(r1, &(0x7f00000006c0)='./file0\x00', 0x8, 0x0, 0x104)
mmap(&(0x7f0000ff2000/0xb000)=nil, 0xb000, 0x4, 0x10, r0, 0x5)
access(&(0x7f0000000700)='./file0\x00', 0x8, 0x20)
wstat(&(0x7f0000000740)='./file0\x00', 0x8, &(0x7f0000000780)=""/211, 0xd3, 0x0)
r3 = fcntl$F_DUPFD(r1, 0x0, r0, 0x1)
openat(r3, &(0x7f0000000880)='./file0\x00', 0x8, 0x0, 0x0)
mmap(&(0x7f0000ffd000/0x1000)=nil, 0x1000, 0x1, 0x1010, r3, 0x800)
mmap(&(0x7f0000ff3000/0x4000)=nil, 0x4000, 0x0, 0x112, 0xffffffffffffffff, 0x608)
change_vcore(0x8, 0x3)
nmount(r2, &(0x7f00000008c0)='./file0\x00', 0x8, 0x5)
r4 = proc_create(&(0x7f0000000900)='./file0\x00', 0x8, &(0x7f0000000940)='\x00', 0x1, 0x1)
dup_fds_to(r4, &(0x7f0000000980)=[{r0}, {r2}, {r0}, {r1}], 0x4)
openat(r1, &(0x7f00000009c0)='./file0/../file0\x00', 0x11, 0x11302, 0x20)
llseek(r1, 0x7, 0xffff, &(0x7f0000000a00), 0x2)
fcntl$F_GETFL(r0, 0x3)
fcntl$F_GETFL(r3, 0x3)

18:14:23 executing program 2:
r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x8, 0xcaa66e39b6bf942c, 0x62)
abort_sysc_fd(r0)
r1 = openat(r0, &(0x7f0000000040)='./file1\x00', 0x8, 0x200, 0x10)
abort_sysc_fd(r0)
r2 = openat(r1, &(0x7f0000000080)='./file1\x00', 0x8, 0x81040, 0xc0)
fcntl$F_GETFD(r2, 0x1)
abort_sysc_fd(r0)
abort_sysc_fd(r1)
r3 = openat(r1, &(0x7f00000000c0)='./file0\x00', 0x8, 0x401, 0x100)
fchdir(0xffffffffffffffff, r2)
abort_sysc_fd(r0)
r4 = openat(r0, &(0x7f0000000100)='./file1\x00', 0x8, 0x80, 0x140)
llseek(r0, 0x6b8, 0x3, &(0x7f0000000140), 0x2)
llseek(r4, 0x100000000, 0x4, &(0x7f0000000180), 0x2)
readlink(&(0x7f00000001c0)='./file1\x00', 0x8, &(0x7f0000000200)=""/103, 0x67)
r5 = proc_create(&(0x7f0000000280)='./file2\x00', 0x8, &(0x7f00000002c0)=':$\'*[]\x00', 0x7, 0x0)
fchdir(r5, r1)
abort_sysc_fd(r3)
nbind(&(0x7f0000000300)='./file2\x00', 0x8, &(0x7f0000000340)='./file3\x00', 0x8, 0x17)
unlink(&(0x7f0000000380)='./file1\x00', 0x8)
fchdir(r5, r1)
abort_sysc_fd(r2)
read(r4, &(0x7f00000003c0)=""/158, 0x9e)
access(&(0x7f0000000480)='./file2\x00', 0x8, 0x104)
r6 = openat(r4, &(0x7f00000004c0)='./file0\x00', 0x8, 0x3, 0x100)
nmount(r6, &(0x7f0000000500)='./file2/file0\x00', 0xe, 0x2)
fcntl$F_SYNC(r3, 0x65)
openat(0xffffffffffffffff, &(0x7f0000000540)='./file3\x00', 0x8, 0x80, 0x20)
openat(r4, &(0x7f0000000580)='./file1\x00', 0x8, 0x8000, 0x4)
fcntl$F_SYNC(r4, 0x65)

18:14:23 executing program 3:
r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x8, 0x800, 0x100)
fcntl$F_SETFD(r0, 0x2, 0x1)
fcntl$F_DUPFD(r0, 0x0, r0, 0x1)
llseek(r0, 0x9, 0x81, &(0x7f0000000040), 0x2)
r1 = openat(0xffffffffffffffff, &(0x7f0000000080)='./file0\x00', 0x8, 0x108600, 0x24)
r2 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x8, 0x1000, 0x11)
proc_create(&(0x7f0000000100)='./file0\x00', 0x8, &(0x7f0000000140)=')\x00', 0x2, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x8, 0x0, 0x22)
abort_sysc_fd(r2)
mkdir(&(0x7f00000001c0)='./file0\x00', 0x8, 0x1)
exec(&(0x7f0000000200)='./file0/../file0\x00', 0x11, &(0x7f0000000240)=')\x00', 0x2)
close(r3)
openat(r1, &(0x7f0000000280)='\x00', 0x1, 0x100, 0x2)
r4 = openat(r2, &(0x7f00000002c0)='./file0\x00', 0x8, 0x2, 0x10)
link(&(0x7f0000000300)='./file0/../file0\x00', 0x11, &(0x7f0000000340)='./file0\x00', 0x8)
r5 = openat(r4, &(0x7f0000000380)='./file0/../file0\x00', 0x11, 0x340, 0x2)
nbind(&(0x7f00000003c0)='./file0\x00', 0x8, &(0x7f0000000400)='./file0\x00', 0x8, 0x0)
wstat(&(0x7f0000000440)='./file0/../file0\x00', 0x11, &(0x7f0000000480)=""/146, 0x92, 0x0)
proc_create(&(0x7f0000000540)='./file0\x00', 0x8, &(0x7f0000000580)='\x00', 0x1, 0x1)
lstat(&(0x7f00000005c0)='./file0/../file0\x00', 0x11, &(0x7f0000000600))
close(r5)
nbind(&(0x7f0000000680)='./file0/../file0\x00', 0x11, &(0x7f00000006c0)='./file0/../file0\x00', 0x11, 0x0)
r6 = openat(0xffffffffffffffff, &(0x7f0000000700)='./file0/../file0\x00', 0x11, 0x90080, 0x9a26bbcf9e3a46d3)
tcgetattr(r5, &(0x7f0000000740))
tcgetattr(r0, &(0x7f0000000780))
rename(&(0x7f00000007c0)='./file0/../file0\x00', 0x11, &(0x7f0000000800)='./file0\x00', 0x8)
rename(&(0x7f0000000840)='./file0/../file0\x00', 0x11, &(0x7f0000000880)='./file0\x00', 0x8)
openat(r1, &(0x7f00000008c0)='./file0\x00', 0x8, 0x100, 0x108)
tcgetattr(r6, &(0x7f0000000900))
vmm_ctl$VMM_CTL_GET_EXITS(0x1)

18:14:23 executing program 4:
vmm_poke_guest(0x1)
exec(&(0x7f0000000000)='./file0\x00', 0x8, &(0x7f0000000040)='\x00', 0x1)
exec(&(0x7f0000000080)='./file0\x00', 0x8, &(0x7f00000000c0)='\x00', 0x1)
stat(&(0x7f0000000100)='./file0\x00', 0x8, &(0x7f0000000140))
link(&(0x7f00000001c0)='./file0\x00', 0x8, &(0x7f0000000200)='./file0/file0\x00', 0xe)
vmm_poke_guest(0x5cf)
link(&(0x7f0000000240)='./file0/file0\x00', 0xe, &(0x7f0000000280)='./file0/file0\x00', 0xe)
r0 = fcntl$F_DUPFD(0xffffffffffffff9c, 0x0, 0xffffffffffffff9c, 0x1)
write(r0, &(0x7f00000002c0)="228cd51d5e9748445a60f5fdffa1431006392910a46e521d23f790b932b8f49575f3f4191011e6a1bb370c5d57c279d82cfd4786aaae5c917e238841c8df0d3ebfb65389cad6707ea1294c5e4020c2d1fa09a87badf34521ca254f2cbea0c7d0fa9bb2672659ecbc34ee634f58b98bcb9574f4ebfd38423a49e37395e95a66b4b26fdf8a8ba79875567d95bc003d6b7175b692b9f28079c7523e90e44f018f6cee97369eac399662a447f3ec51acb3f5fd8f84679de66effc29bfb5585e4c0f2", 0xc0)
exec(&(0x7f0000000380)='./file0\x00', 0x8, &(0x7f00000003c0)='\x00', 0x1)
exec(&(0x7f0000000400)='./file0\x00', 0x8, &(0x7f0000000440)='\x00', 0x1)
r1 = fcntl$F_DUPFD(r0, 0x0, r0, 0x1)
unlink(&(0x7f0000000480)='./file0/file0\x00', 0xe)
cache_invalidate()
nunmount(&(0x7f00000004c0)='./file0\x00', 0x8, &(0x7f0000000500)='./file0/file0\x00', 0xe)
halt_core(0x24f3)
wstat(&(0x7f0000000540)='./file0/file0\x00', 0xe, &(0x7f0000000580)=""/137, 0x89, 0x0)
lstat(&(0x7f0000000640)='./file0/file0\x00', 0xe, &(0x7f0000000680))
self_notify(0x9, 0x3b, &(0x7f00000007c0)={0x3600b7ac794d435a, 0x1, 0x0, &(0x7f0000000700)="cb21f94067457bfd28bedeca0421a3cb039bc5f6ffb0ad1ee1c0ec623805d0e9942f8d256bc401270a9b611f30544b6b761c2b2743c64eb2126c4532332506ec7d559d0085fa69af02945b47cc581982dc71d6eedb25b1e7b22e5c5500cca0a2381a186917b0fbaea06a2c8c86fc494def6dbbe28c03fed7219aa9f7edccd095409a458a7ca596967c928ddb164e0345b5d0e00738c961eca9f480beae8c6d9619f3b25e781e7b59", 0xffff}, 0x0)
exec(&(0x7f0000000800)='./file0\x00', 0x8, &(0x7f0000000840)='--\x00', 0x3)
exec(&(0x7f0000000880)='./file0\x00', 0x8, &(0x7f00000008c0)='\x00', 0x1)
fork()
access(&(0x7f0000000900)='./file0/file0\x00', 0xe, 0x2)
exec(&(0x7f0000000940)='./file0/file0\x00', 0xe, &(0x7f0000000980)='\x00', 0x1)
getcwd(&(0x7f00000009c0)=""/4096, 0x1000)
readlink(&(0x7f00000019c0)='./file0\x00', 0x8, &(0x7f0000001a00)=""/47, 0x2f)
nmount(r1, &(0x7f0000001a40)='./file0/file0\x00', 0xe, 0x1)
access(&(0x7f0000001a80)='./file0\x00', 0x8, 0x0)
halt_core(0xf9e)
stat(&(0x7f0000001ac0)='./file1\x00', 0x8, &(0x7f0000001b00))

18:14:23 executing program 6:
getpcoreid()
munmap(&(0x7f0000ffc000/0x4000)=nil, 0x4000)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x8, 0x120883, 0x12)
llseek(r0, 0x0, 0x7fffffff, &(0x7f0000000040), 0x3)
vc_entry()
r1 = proc_create(&(0x7f0000000080)='./file0\x00', 0x8, &(0x7f00000000c0)='\x00', 0x1, 0x1)
fchdir(r1, r0)
poke_ksched(r1, 0x0)
r2 = proc_create(&(0x7f0000000100)='./file0\x00', 0x8, &(0x7f0000000140)='\x00', 0x1, 0x0)
r3 = openat(r0, &(0x7f0000000180)='./file0\x00', 0x8, 0x80400, 0x4)
rmdir(&(0x7f00000001c0)='./file0\x00', 0x8)
nbind(&(0x7f0000000200)='./file0\x00', 0x8, &(0x7f0000000240)='./file0\x00', 0x8, 0x0)
halt_core(0x8)
openat(r3, &(0x7f0000000280)='./file0\x00', 0x8, 0x3, 0x1)
readlink(&(0x7f00000002c0)='./file0/file0\x00', 0xe, &(0x7f0000000300)=""/103, 0x67)
cache_invalidate()
change_to_m()
proc_create(&(0x7f0000000380)='./file0/file0\x00', 0xe, &(0x7f00000003c0)='.$!-\x00', 0x5, 0x0)
exec(&(0x7f0000000400)='./file1\x00', 0x8, &(0x7f0000000440)='\x00', 0x1)
vc_entry()
nunmount(&(0x7f0000000480)='./file0/file0\x00', 0xe, &(0x7f00000004c0)='./file1\x00', 0x8)
fcntl$F_GETFL(r3, 0x3)
rmdir(&(0x7f0000000500)='./file0/file0\x00', 0xe)
access(&(0x7f0000000540)='./file1\x00', 0x8, 0xfe)
mkdir(&(0x7f0000000580)='./file0\x00', 0x8, 0x8)
r4 = openat(r0, &(0x7f00000005c0)='./file0\x00', 0x8, 0x1003, 0x40)
proc_create(&(0x7f0000000600)='./file0\x00', 0x8, &(0x7f0000000640)='.$!-\x00', 0x5, 0x1)
symlink(&(0x7f0000000680)='./file0/file0\x00', 0xe, &(0x7f00000006c0)='./file0/file0\x00', 0xe)
dup_fds_to(r2, &(0x7f0000000700)=[{r3}, {r4}, {r0}, {r3}, {r0}], 0x5)
nmount(r4, &(0x7f0000000740)='./file0\x00', 0x8, 0x2)

18:14:23 executing program 5:
r0 = proc_create(&(0x7f0000000000)='./file0\x00', 0x8, &(0x7f0000000040)='\x00', 0x1, 0x0)
waitpid(r0, &(0x7f0000000080), 0x1)
proc_create(&(0x7f00000000c0)='./file0\x00', 0x8, &(0x7f0000000100)='-\'\x00', 0x3, 0x0)
proc_run(0x0)
r1 = proc_create(&(0x7f0000000140)='./file0\x00', 0x8, &(0x7f0000000180)='\x00', 0x1, 0x1)
r2 = proc_create(&(0x7f00000001c0)='./file0\x00', 0x8, &(0x7f0000000200)='-\'\x00', 0x3, 0x0)
wstat(&(0x7f0000000240)='./file0\x00', 0x8, &(0x7f0000000280)=""/93, 0x5d, 0x0)
r3 = fcntl$F_DUPFD(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x3)
tcgetattr(r3, &(0x7f0000000300))
nunmount(&(0x7f0000000340)='./file0\x00', 0x8, &(0x7f0000000380)='./file0\x00', 0x8)
notify(r0, 0xa, &(0x7f00000004c0)={0x5, 0x3, 0x0, &(0x7f00000003c0)="a144dbf198e76f3973f737bd97ac6bfa8914167b2303c4d091b9199826d929dfd742310986f98f655942d33463631a1ff95c8de5db7277c363ffe7da0208a210003b96b0fa35892fe9d90a2fa11978e261d139b2e4c99d65c765c8f51c10ae677c688671a06519e2ccf041bd6d8cbd316a9cd69521ab1a7bb6667e09b8902a612e2029a1d95e3bf8c7f450899d1496758db6895ede47951ae43ff0df8f6c0fdc6a6096947f0e9636849b39d0b8a71785f7d77aae15ab0dbf82f03ba89f76cf8f879871b21b6c5a334426eb9ad8152478b0b747c14d329a213c72ae68d48046170e8095f40a3d1bdc5bfead38457d789ff6f26f2268", 0xfa})
tap_fds(&(0x7f0000000bc0)=[{r3, 0x2, 0x1, 0x88, &(0x7f0000000580)={&(0x7f0000000500)="167dc82ab2d5f31b92d2b8527daa5bfa7bdf4d0749ef267a2c92578e761cea99e1ad5b42b7211802d65334939504a4a7eeeb85309a9bf5572ddef96ce8b3162e106616aaa5f145c6c1d16816958c4242", 0x10001, 0x1, 0x4, 0x9, 0x7fff}}, {r3, 0x1, 0x0, 0xc53, &(0x7f0000000640)={&(0x7f00000005c0)="b4bc1f1a2f3191fb02a6d10006e9d7788a3a7f53413824a0bdd70f9860b60b0feafdb7c0a9fc5c380b12aacd83a01a183f716b83602e716572cee0a91d893399a00b38d01391d49e9dbd55579cdf9772", 0x0, 0x1, 0x1, 0x101, 0x2}}, {r3, 0x1, 0x100, 0x20, &(0x7f0000000700)={&(0x7f0000000680)="be63c631a283753d4ae8fb2e1ac8fabba79d2d0df0b9518c425151dcb1b62f1e95fbdc3e7a14b7c329c1deea1960255bbc1713794442e33b39bfbd4325932c41e409f0b9f3498f1680f86218a9967e04", 0x80000001, 0x0, 0x200, 0xffffffffffffeab4, 0x417}}, {r3, 0x1, 0x400, 0x2, &(0x7f00000007c0)={&(0x7f0000000740)="44c2ffea2320ffc5aec4bc5bb0df2bc784328faa0a368af1f06d9c518cf41dee3d229e746155d31bbe517a20461b9dc152eede9b0e410da6d571dc0859f5501c80ed8446282742c4c4023959fab56a33", 0x1, 0x0, 0x8e, 0xc0b4, 0x7ff}}, {r3, 0x2, 0x20, 0x10000, &(0x7f0000000880)={&(0x7f0000000800)="3301ef6d69411c2eaa4dea5fa3549ee2987e2c211ab4a10fdf1f4de454b2078426638ec48a1a8ab064ad0a5cd46f1ff4df051ddc9751a5a2d45c0d06e867ab19ef07b69d2a1e565dc293db19ebf54d36", 0x8000, 0x1, 0x7, 0x5a8}}, {r3, 0x0, 0x2, 0x3, &(0x7f0000000940)={&(0x7f00000008c0)="3179983dede58552d9fe6dfd35da7e64397480199cefdde49009b2dcddd522725b851d0d4bf3601320cb163332ade3cd450d418bceb73f6b6cf93cbdda0e3311727647992d6012a004b5da4057ecd011", 0x0, 0x0, 0x6, 0x3, 0x31ac607e}}, {r3, 0x1, 0x40, 0x3ff, &(0x7f0000000a00)={&(0x7f0000000980)="6ed67ff50db8d78785bbbec7868c725889527769643913ab0df79cdbbc3ae21dfef078f33c9fedd5c900b2265e161aa39d8a7f10b16989f1a746ee5e4d0bdd3a32df6c06a3705e70fc6b0a40f5d421e7", 0xc35, 0x0, 0x9, 0xffff}}, {r3, 0x3, 0x41, 0x9ccf, &(0x7f0000000ac0)={&(0x7f0000000a40)="c2433921c6986b50e3e06e699d6db358fb300b187e1be276edefcdc8f350f5787cb4997462947c5a9550c07a21ee9b48c609edef13e4cc9dfe8903a66c02eb34b91765788851c6843538fcf588976157", 0x45, 0x1, 0x2560000000000, 0x8, 0x4}}, {r3, 0x3, 0x110, 0x9f6, &(0x7f0000000b80)={&(0x7f0000000b00)="4147fc977396c6c9659df8687ab27ea293ea52be5ad33439609fbe733c18b35babcdd223387dee7c5d2e90ab0bb04b0df10576332c6fa057bfb2ebd0b75df0e112335e727914abb22546cafd45ec66d5", 0x7fff, 0x0, 0x1000, 0x200, 0x2}}], 0x9)
tcgetattr(r3, &(0x7f0000000d00))
r4 = proc_create(&(0x7f0000000d40)='./file0\x00', 0x8, &(0x7f0000000d80)='-\'\x00', 0x3, 0x1)
notify(r4, 0x32, &(0x7f0000000e40)={0x1, 0xee5a, 0x6, &(0x7f0000000dc0)="07dbc315290f3a6cb27589cd309ef319cb8bd685a673cd05517f38fabe03c79fa92d61b1fbe644547ab9a227c2212dae5bf22e6f21d54e3d509c8079755b79a0519a2e1f7548a301963bddf4f487be9160b2", 0x5})
tap_fds(&(0x7f0000000f40)=[{r3, 0x1, 0x3, 0x0, &(0x7f0000000f00)={&(0x7f0000000e80)="62a05b7c3d1701badb745daa139a7ba3a6f4e5398bbd41f24c577c899db86730e184dbddc6a464c9857969ae6bfd8c8343b7158134e29a4f3a08d35e85f9a9538ebe4b3f8ddde5efcb0be6f735d27338", 0x8, 0x1, 0x80000001, 0xffffffff, 0x7fffffff}}], 0x1)
fchdir(r1, r3)
halt_core(0x7)
fd2path(r3, &(0x7f0000000f80)=""/173, 0xad)
r5 = openat(r3, &(0x7f0000001040)='./file0\x00', 0x8, 0x10003, 0x19d)
wstat(&(0x7f0000001080)='./file0\x00', 0x8, &(0x7f00000010c0)=""/173, 0xad, 0x0)
nunmount(&(0x7f0000001180)='./file0\x00', 0x8, &(0x7f00000011c0)='./file0\x00', 0x8)
proc_create(&(0x7f0000001200)='./file0\x00', 0x8, &(0x7f0000001240)='\x00', 0x1, 0x0)
r6 = proc_create(&(0x7f0000001280)='./file0\x00', 0x8, &(0x7f00000012c0)='\x00', 0x1, 0x1)
chdir(r6, &(0x7f0000001300)='./file0\x00', 0x8)
unlink(&(0x7f0000001340)='./file0\x00', 0x8)
fchdir(r0, r3)
close(r3)
proc_run(r2)
read(r5, &(0x7f0000001380)=""/15, 0xf)

18:14:23 executing program 7:
r0 = fcntl$F_DUPFD(0xffffffffffffff9c, 0x0, 0xffffffffffffffff, 0x0)
tcgetattr(r0, &(0x7f0000000000))
r1 = openat(r0, &(0x7f0000000040)='./file0\x00', 0x8, 0x2, 0x1)
fstat(r1, &(0x7f0000000080))
fstat(r1, &(0x7f0000000100))
r2 = fcntl$F_DUPFD(r1, 0x0, r0, 0x1)
fstat(r2, &(0x7f0000000180))
r3 = openat(r0, &(0x7f0000000200)='./file0\x00', 0x8, 0x0, 0x90)
nmount(r0, &(0x7f0000000240)='./file0\x00', 0x8, 0x14)
tcgetattr(r2, &(0x7f0000000280))
write(r0, &(0x7f00000002c0)="e72d7d697d01fd092178828989532f63aeb4a9b7aca6dc12bea166184375b359eb0278ba77ac04b2c47fb3c5bf4639933c71dec18311467a422d206f02f37d6b7a22fe24e86dd214655bf89a4c8b1649138e6410e1d4d57f4dd4f59bfbe428ef4da3a33e97b54b2f0e9fbedd52b67f7413e965e5731658f97325dde38cb947453f54290fb89059", 0x87)
fstat(r3, &(0x7f0000000380))
write(r2, &(0x7f0000000400)="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", 0x1000)
tcgetattr(r3, &(0x7f0000001400))
fd2path(r1, &(0x7f0000001440)=""/18, 0x12)
tap_fds(&(0x7f0000001840)=[{r3, 0x2, 0x0, 0xdd, &(0x7f0000001500)={&(0x7f0000001480)="09d7d49921b5b708a9ceeccdf938b95c756ce307973f73e46c37ed9ba1808b171c03cd371066dac83a59560dfec5dab9367c66bd43c92485d86fa621a5acb1b9db92c2501a8eef620fb4f593c6c17999", 0x1, 0x0, 0xba, 0x8}}, {r0, 0x2, 0x0, 0x9, &(0x7f00000015c0)={&(0x7f0000001540)="dac6a88079bc4093e5963dc2d77a9bee10923f5ebc056137ce5203a87c2ac33277a9c1ca5334a9d536bf5cf0f9ee00db9a69ffa8d1601642674532e152f3ffa1a13fe891890533fb76ca9e1d7d296956", 0xfffffffffffffff8, 0x1, 0x7, 0x1f, 0x4}}, {r0, 0x3, 0x20, 0x2, &(0x7f0000001680)={&(0x7f0000001600)="f45d809290229d301aa0469e5a4cdc48e14f6d0c8a6283ecb9ed2dd6c16ff95b52258017ef8a578715acef01664ff5adf68bd51ecf5ae9957277baa7811bd5b3d7e47ea15a6359ce4368ef9e9ee0ca91", 0x8, 0x1, 0x9, 0x101, 0x3}}, {r2, 0x0, 0x500, 0x6, &(0x7f0000001740)={&(0x7f00000016c0)="1eaf425a059d18a9bb04a6b3f7461acfa7d13898ec9790daa8c1bee294d591235fb7529e53e5536ac14f2543231e8a5d114fcc43ce56cc859605b2c5af50e713c8171120cbd74752baa826d4e9781a19", 0xfffffffffffffe00, 0x0, 0xe0, 0x7}}, {r1, 0x2, 0x5, 0xfffffffffffffffb, &(0x7f0000001800)={&(0x7f0000001780)="683a62c808fbe86541098a1236600cb9ce6f71236660456591424d94518fe6511b0562d8966166959615ccc03062e396701e4b48b7f9673826edd9af9f1d9d3bf9317202c3dbef58bb6ab3dd13bd47e4", 0x81, 0x1, 0xb23, 0xffffffffffffff6f, 0x4800000000000}}], 0x5)
llseek(r2, 0x0, 0x3, &(0x7f0000001900), 0x1)
fstat(r1, &(0x7f0000001940))
r4 = openat(r1, &(0x7f00000019c0)='./file0/../file0\x00', 0x11, 0x1, 0x10)
r5 = openat(r3, &(0x7f0000001a00)='./file0/../file0\x00', 0x11, 0x40, 0x40)
openat(r5, &(0x7f0000001a40)='./file0\x00', 0x8, 0x0, 0x2)
mmap(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x2000000, 0x10810, r4, 0x7)
fcntl$F_SETFL(r1, 0x4, 0x108000)
symlink(&(0x7f0000001a80)='./file0/../file0\x00', 0x11, &(0x7f0000001ac0)='.\x00', 0x2)
nbind(&(0x7f0000001b00)='./file0\x00', 0x8, &(0x7f0000001b40)='./file0\x00', 0x8, 0x10)
abort_sysc(0x93)
nunmount(&(0x7f0000001b80)='./file0\x00', 0x8, &(0x7f0000001bc0)='./file0/../file0\x00', 0x11)
fcntl$F_DUPFD(r4, 0x0, r0, 0x1)
mkdir(&(0x7f0000001c00)='./file1\x00', 0x8, 0x80)
mmap(&(0x7f0000ffb000/0x2000)=nil, 0x2000, 0x4, 0x31, r4, 0x2)


bash-4.3$ kernel panic at kern/src/rcu.c:325, from core 2: HW TRAP frame at 0xfffffff00001af40 on core 3

assertion failed: rpi->gp_acked + 1 == READ_ONCE(rsp->gpnum)  rax  0x000000000000003d


  rbx  0xffffffffc8668140

Stack Backtrace on Core 2:

  rcx  0xffffffffc8668148

#01 [<0xffffffffc200a3b7>] in backtrace

  rdx  0x0000001f1235aaf8

#02 [<0xffffffffc2009b7c>] in _panic

  rbp  0xfffffff00000efd8

#03 [<0xffffffffc20502f9>] in rcu_report_qs_rpi

  rsi  0x0000000000000003

#04 [<0xffffffffc2050c4c>] in rcu_report_qs

  rdi  0xffffffffc8668140

#05 [<0xffffffffc204d12b>] in proc_restartcore

  r8   0x0000000000000000

#06 [<0xffffffffc20aaf20>] in sysenter_callwrapper

  r9   0xffffffffc8668238


  r10  0x0000000000000078

  r11  0xffffffffc86681f8

  r12  0xffff80000218aae0

  r13  0x0000000000000003

  r14  0x0000000000000000

Entering Nanwan's Dungeon on Core 2 (Ints off):

  r15  0x0000000000000003

Type 'help' for a list of commands.

  trap 0x00000008 Double Fault

ROS(Core 2)>   gsbs 0xffffffffc8668140

  fsbs 0x0000000000000000

  err  0x--------00000000

  rip  0xffffffffc209f2c1

  cs   0x------------0008

  flag 0x0000000000010246

  rsp  0xfffffff00000efd8

  ss   0x------------0010


Backtrace of kernel context on Core 3:

#01 [<0xffffffffc209f2c1>] in cpu_halt

#02 [<0xffffffffc205442a>] in __smp_idle

kernel panic at kern/arch/x86/trap.c:541, from core 3: Double fault!  Check the kernel stack pointer; you likely ran off the end of the stack.

Stack Backtrace on Core 3:

#01 [<0xffffffffc200a3b7>] in backtrace

#02 [<0xffffffffc2009b7c>] in _panic

#03 [<0xffffffffc20aa253>] in handle_double_fault


Entering Nanwan's Dungeon on Core 3 (Ints off):

Type 'help' for a list of commands.