2021/08/06 11:33:12 fuzzer started runtime: failed to create new OS thread (have 8 already; errno=11) runtime: may need to increase max user processes (ulimit -u) fatal error: newosproc goroutine 13 [running]: runtime.throw(0x771be4, 0x9) /usr/lib/go-1.15/src/runtime/panic.go:1116 +0x72 fp=0xc0000cd608 sp=0xc0000cd5d8 pc=0x4364d2 runtime.newosproc(0xc000079400) /usr/lib/go-1.15/src/runtime/os_linux.go:161 +0x1c5 fp=0xc0000cd668 sp=0xc0000cd608 pc=0x432aa5 runtime.newm1(0xc000079400) /usr/lib/go-1.15/src/runtime/proc.go:1843 +0xdd fp=0xc0000cd6a8 sp=0xc0000cd668 pc=0x43cabd runtime.newm(0x78fca0, 0x0, 0xffffffffffffffff) /usr/lib/go-1.15/src/runtime/proc.go:1822 +0x9b fp=0xc0000cd6e0 sp=0xc0000cd6a8 pc=0x43c93b runtime.startTemplateThread() /usr/lib/go-1.15/src/runtime/proc.go:1863 +0xb2 fp=0xc0000cd710 sp=0xc0000cd6e0 pc=0x43cbb2 runtime.LockOSThread() /usr/lib/go-1.15/src/runtime/proc.go:3845 +0x6b fp=0xc0000cd730 sp=0xc0000cd710 pc=0x441e0b runtime.ensureSigM.func1() /usr/lib/go-1.15/src/runtime/signal_unix.go:883 +0x48 fp=0xc0000cd7e0 sp=0xc0000cd730 pc=0x464e28 runtime.goexit() /usr/lib/go-1.15/src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0000cd7e8 sp=0xc0000cd7e0 pc=0x46c2e1 created by runtime.ensureSigM /usr/lib/go-1.15/src/runtime/signal_unix.go:880 +0xd5 goroutine 1 [runnable]: github.com/google/syzkaller/pkg/host.scanCPUInfo(0xc0000a04e0, 0xc00014d988) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/host/machine_info_linux.go:57 +0x371 github.com/google/syzkaller/pkg/host.readCPUInfo(0xc0000a04e0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/host/machine_info_linux.go:35 +0x134 github.com/google/syzkaller/pkg/host.CollectMachineInfo(0xc000078c00, 0xc000000180, 0x44118e, 0xc00014db00, 0x464a20) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/host/machine_info.go:19 +0x15c main.collectMachineInfos(0xc0001251e0, 0x78f698, 0xc0000d2060, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:296 +0x26 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:182 +0x632 goroutine 11 [chan send]: os/signal.signal_enable(0x2) /usr/lib/go-1.15/src/runtime/sigqueue.go:216 +0x72 os/signal.enableSignal(...) /usr/lib/go-1.15/src/os/signal/signal_unix.go:49 os/signal.Notify.func1(0x2) /usr/lib/go-1.15/src/os/signal/signal.go:144 +0x88 os/signal.Notify(0xc00007e540, 0xc0000cc7a8, 0x2, 0x2) /usr/lib/go-1.15/src/os/signal/signal.go:164 +0x162 github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1(0xc0000d2060) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:78 +0x9f created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts /syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:76 +0x3f goroutine 12 [chan receive]: main.main.func1(0xc0000d2060) /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 VM DIAGNOSIS: 11:33:12 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000000 RCX=000000000000080b RDX=0000000000000000 RSI=0000000000000000 RDI=000000000000080b RBP=fffffff001070ea0 RSP=fffffff001070ea0 R8 =0000000000000000 R9 =0000000000000002 R10=0000000000000078 R11=ffffffffc8f79bb8 R12=0000000000000000 R13=ffffffffc8f79b00 R14=fffffff001070f10 R15=0000000000000000 RIP=ffffffffc20a7b5e RFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 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=0000001079bd0d52 RSI=0000000000000003 RDI=ffffffffc8f79dc0 RBP=fffffff000015fd8 RSP=fffffff000015fd8 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 ffffffffc8f79dc0 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 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 2 RAX=000000000000003d RBX=ffffffffc8f7a080 RCX=ffffffffc8f7a088 RDX=0000001079bcc3d6 RSI=0000000000000003 RDI=ffffffffc8f7a080 RBP=fffffff00000ffd8 RSP=fffffff00000ffd8 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 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 ffffffffc8f7a080 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 3 RAX=000000000000003d RBX=ffffffffc8f7a340 RCX=ffffffffc8f7a348 RDX=0000001079bced66 RSI=0000000000000003 RDI=ffffffffc8f7a340 RBP=fffffff000012fd8 RSP=fffffff000012fd8 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 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