2021/08/06 10:19:02 fuzzer started 2021/08/06 10:19:02 dialing manager at localhost:45393 runtime: failed to create new OS thread (have 11 already; errno=11) runtime: may need to increase max user processes (ulimit -u) fatal error: newosproc runtime stack: runtime.throw(0x771be4, 0x9) /usr/lib/go-1.15/src/runtime/panic.go:1116 +0x72 runtime.newosproc(0xc0003be400) /usr/lib/go-1.15/src/runtime/os_linux.go:161 +0x1c5 runtime.newm1(0xc0003be400) /usr/lib/go-1.15/src/runtime/proc.go:1843 +0xdd runtime.newm(0x78fb90, 0xc00002b000, 0xa) /usr/lib/go-1.15/src/runtime/proc.go:1822 +0x9b runtime.startm(0x0, 0x462001) /usr/lib/go-1.15/src/runtime/proc.go:1979 +0xc9 runtime.wakep() /usr/lib/go-1.15/src/runtime/proc.go:2067 +0x66 runtime.resetspinning() /usr/lib/go-1.15/src/runtime/proc.go:2539 +0x59 runtime.schedule() /usr/lib/go-1.15/src/runtime/proc.go:2690 +0x2b9 runtime.goschedImpl(0xc0003a2780) /usr/lib/go-1.15/src/runtime/proc.go:2866 +0xda runtime.gopreempt_m(0xc0003a2780) /usr/lib/go-1.15/src/runtime/proc.go:2894 +0x34 runtime.newstack() /usr/lib/go-1.15/src/runtime/stack.go:1047 +0x1bc runtime.morestack() /usr/lib/go-1.15/src/runtime/asm_amd64.s:449 +0x8f goroutine 1 [select]: net.(*Resolver).lookupIPAddr(0xa362e0, 0x8004c0, 0xc00012b8c0, 0x76c8ef, 0x3, 0x7fff58fc3ea6, 0x9, 0xb151, 0x0, 0x0, ...) /usr/lib/go-1.15/src/net/lookup.go:299 +0x685 net.(*Resolver).internetAddrList(0xa362e0, 0x8004c0, 0xc00012b8c0, 0x76c8ef, 0x3, 0x7fff58fc3ea6, 0xf, 0x0, 0x0, 0x0, ...) /usr/lib/go-1.15/src/net/ipsock.go:280 +0x4d4 net.(*Resolver).resolveAddrList(0xa362e0, 0x8004c0, 0xc00012b8c0, 0x76cd1b, 0x4, 0x76c8ef, 0x3, 0x7fff58fc3ea6, 0xf, 0x0, ...) /usr/lib/go-1.15/src/net/dial.go:221 +0x47d net.(*Dialer).DialContext(0xc0004aba18, 0x800480, 0xc000124010, 0x76c8ef, 0x3, 0x7fff58fc3ea6, 0xf, 0x0, 0x0, 0x0, ...) /usr/lib/go-1.15/src/net/dial.go:403 +0x22b net.(*Dialer).Dial(...) /usr/lib/go-1.15/src/net/dial.go:348 net.DialTimeout(0x76c8ef, 0x3, 0x7fff58fc3ea6, 0xf, 0xdf8475800, 0xc00011e050, 0x2, 0xc0000c7080, 0x22) /usr/lib/go-1.15/src/net/dial.go:334 +0xba github.com/google/syzkaller/pkg/rpctype.Dial(0x7fff58fc3ea6, 0xf, 0x1, 0x171b, 0xc00013db58, 0x0, 0x10) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:71 +0xa5 github.com/google/syzkaller/pkg/rpctype.NewRPCClient(0x7fff58fc3ea6, 0xf, 0x1, 0xc00013ddc8, 0x1, 0x1) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:79 +0x45 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:185 +0x72f goroutine 16 [chan receive]: main.main.func1(0xc0001000c0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:164 +0x34 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:162 +0x573 goroutine 15 [chan receive]: github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1(0xc0001000c0) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:79 +0xb6 created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts /syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:76 +0x3f goroutine 30 [syscall]: os/signal.signal_recv(0x0) /usr/lib/go-1.15/src/runtime/sigqueue.go:147 +0x9d os/signal.loop() /usr/lib/go-1.15/src/os/signal/signal_unix.go:23 +0x25 created by os/signal.Notify.func1.1 /usr/lib/go-1.15/src/os/signal/signal.go:150 +0x45 goroutine 81 [runnable]: net.open(0x772318, 0xa, 0x3b7a2598, 0xed8932d17, 0xa369c0) /usr/lib/go-1.15/src/net/parse.go:72 +0xaa net.readHosts() /usr/lib/go-1.15/src/net/hosts.go:68 +0x19d net.lookupStaticHost(0x7fff58fc3ea6, 0x9, 0x0, 0x0, 0x0) /usr/lib/go-1.15/src/net/hosts.go:107 +0x95 net.goLookupIPFiles(0x7fff58fc3ea6, 0x9, 0x0, 0x0, 0x0) /usr/lib/go-1.15/src/net/dnsclient_unix.go:547 +0x4d net.(*Resolver).goLookupIPCNAMEOrder(0xa362e0, 0x800440, 0xc000402c80, 0x7fff58fc3ea6, 0x9, 0x1, 0x0, 0x0, 0x0, 0x0, ...) /usr/lib/go-1.15/src/net/dnsclient_unix.go:568 +0x127d net.(*Resolver).lookupIP(0xa362e0, 0x800440, 0xc000402c80, 0x76c8ef, 0x3, 0x7fff58fc3ea6, 0x9, 0x0, 0x0, 0x0, ...) /usr/lib/go-1.15/src/net/lookup_unix.go:102 +0xe5 net.glob..func1(0x800440, 0xc000402c80, 0xc00007ad10, 0x76c8ef, 0x3, 0x7fff58fc3ea6, 0x9, 0x0, 0x0, 0x0, ...) /usr/lib/go-1.15/src/net/hook.go:23 +0x72 net.(*Resolver).lookupIPAddr.func1(0x0, 0x0, 0x0, 0x0) /usr/lib/go-1.15/src/net/lookup.go:293 +0xb9 internal/singleflight.(*Group).doCall(0xa362f0, 0xc000012550, 0xc000125220, 0xd, 0xc000402cc0) /usr/lib/go-1.15/src/internal/singleflight/singleflight.go:95 +0x2e created by internal/singleflight.(*Group).DoChan /usr/lib/go-1.15/src/internal/singleflight/singleflight.go:88 +0x2cc VM DIAGNOSIS: 10:19:02 Registers: info registers vcpu 0 RAX=000000000000003d RBX=ffffffffc8f79b00 RCX=ffffffffc8f79b08 RDX=0000001f6249d365 RSI=0000000000000003 RDI=ffffffffc8f79b00 RBP=fffffff001076fd8 RSP=fffffff001076fd8 R8 =0000000000000001 R9 =0000000000000002 R10=0000000000000078 R11=ffffffffc8f79bb8 R12=0000000000000000 R13=ffffffffc8f79c48 R14=ffffffffc2000130 R15=0000000000000000 RIP=ffffffffc20aad51 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0008 0000000000000000 00000000 00209900 DPL=0 CS64 [--A] SS =0010 0000000000000000 ffffffff 00809300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000100000000ce0 ffffffff 00c00000 GS =0000 ffffffffc8f79b00 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0028 ffffffffc90a8a40 00000068 00008b00 DPL=0 TSS64-busy GDT= ffff800000100374 00000037 IDT= ffffffffc8f72ef0 00000fff CR0=80010033 CR2=000000000045766a CR3=0000000000101000 CR4=000506b0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000501 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=0000000000000000000000000000ff00 XMM01=25252525252525252525252525252525 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=0000000000000000000000000000ff00 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=ff000000ff000000ff000000ff000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000000003d RBX=ffffffffc8f79dc0 RCX=ffffffffc8f79dc8 RDX=00000015d75e57ad RSI=0000000000000003 RDI=ffffffffc8f79dc0 RBP=fffffff00000ffd8 RSP=fffffff00000ffd8 R8 =0000000000000000 R9 =ffff80000d945fc8 R10=0000000000001000 R11=ffff80000d945000 R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=ffffffffc20aad51 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0008 0000000000000000 00000000 00209900 DPL=0 CS64 [--A] SS =0000 0000000000000000 ffffffff 00c00000 DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffffffffc8f79dc0 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0028 ffff80000d94b920 00000068 00008b00 DPL=0 TSS64-busy GDT= ffff80000d94b992 00000037 IDT= ffffffffc8f72ef0 00000fff CR0=80010033 CR2=0000000000000000 CR3=0000000000101000 CR4=000506b0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000501 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=504300632e737570632d6d766b2f6d76 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 2 RAX=000000000000003d RBX=ffffffffc8f7a080 RCX=ffffffffc8f7a088 RDX=00000015d75eb0a3 RSI=0000000000000003 RDI=ffffffffc8f7a080 RBP=fffffff000015fd8 RSP=fffffff000015fd8 R8 =0000000000000000 R9 =ffff80000d947fc8 R10=0000000000001000 R11=ffff80000d947000 R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=ffffffffc20aad51 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00000000 CS =0008 0000000000000000 00000000 00209900 DPL=0 CS64 [--A] SS =0000 0000000000000000 ffffffff 00000000 DS =0000 0000000000000000 ffffffff 00000000 FS =0000 0000000000000000 ffffffff 00000000 GS =0000 ffffffffc8f7a080 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 TR =0028 ffff80000d94b720 00000068 00008b00 DPL=0 TSS64-busy GDT= ffff80000d94b792 00000037 IDT= ffffffffc8f72ef0 00000fff CR0=80010033 CR2=0000000000000000 CR3=0000000000101000 CR4=000506b0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000501 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=504300632e737570632d6d766b2f6d76 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 3 RAX=000000000000003d RBX=ffffffffc8f7a340 RCX=ffffffffc8f7a348 RDX=00000015d75f026c RSI=0000000000000003 RDI=ffffffffc8f7a340 RBP=fffffff000012fd8 RSP=fffffff000012fd8 R8 =0000000000000000 R9 =ffff80000d946fc8 R10=0000000000001000 R11=ffff80000d946000 R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=ffffffffc20aad51 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0008 0000000000000000 00000000 00209900 DPL=0 CS64 [--A] SS =0000 0000000000000000 ffffffff 00c00000 DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffffffffc8f7a340 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0028 ffff80000d94b820 00000068 00008b00 DPL=0 TSS64-busy GDT= ffff80000d94b892 00000037 IDT= ffffffffc8f72ef0 00000fff CR0=80010033 CR2=0000000000000000 CR3=0000000000101000 CR4=000506b0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000501 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=504300632e737570632d6d766b2f6d76 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000