2021/08/06 13:23:17 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 runtime stack: runtime.throw(0x771be4, 0x9) /usr/lib/go-1.15/src/runtime/panic.go:1116 +0x72 runtime.newosproc(0xc000078c00) /usr/lib/go-1.15/src/runtime/os_linux.go:161 +0x1c5 runtime.newm1(0xc000078c00) /usr/lib/go-1.15/src/runtime/proc.go:1843 +0xdd runtime.newm(0x78fb90, 0xc000021000, 0x7) /usr/lib/go-1.15/src/runtime/proc.go:1822 +0x9b runtime.startm(0x0, 0xc00010df01) /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.park_m(0xc000001200) /usr/lib/go-1.15/src/runtime/proc.go:2851 +0x9d runtime.mcall(0x0) /usr/lib/go-1.15/src/runtime/asm_amd64.s:318 +0x5b goroutine 1 [semacquire]: sync.runtime_Semacquire(0xc000138a88) /usr/lib/go-1.15/src/runtime/sema.go:56 +0x45 sync.(*WaitGroup).Wait(0xc000138a80) /usr/lib/go-1.15/src/sync/waitgroup.go:130 +0x65 github.com/google/syzkaller/sys/targets.(*Target).lazyInit(0xc0002eac00) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:805 +0x23d sync.(*Once).doSlow(0xc000138470, 0xc00014fa90) /usr/lib/go-1.15/src/sync/once.go:66 +0xec sync.(*Once).Do(...) /usr/lib/go-1.15/src/sync/once.go:57 github.com/google/syzkaller/sys/targets.GetEx(0x76e57f, 0x6, 0x76d62a, 0x5, 0xc00014fb00, 0x5e46f1) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:152 +0xf6 github.com/google/syzkaller/sys/targets.Get(...) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:143 github.com/google/syzkaller/pkg/ipc/ipcconfig.Default(0xc000125040, 0x6, 0x7ffebdcf1e8c, 0x5, 0xc000125040) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipcconfig/ipcconfig.go:25 +0x69 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:154 +0x438 goroutine 19 [syscall]: syscall.SlicePtrFromStrings(0xc000424050, 0x5, 0x5, 0xc00040e380, 0x8, 0x8, 0x0, 0x0) /usr/lib/go-1.15/src/syscall/exec_unix.go:94 +0x85 syscall.forkExec(0xc000114240, 0x52, 0xc000420000, 0x7, 0x7, 0xc00011acb0, 0x5, 0x68c0303600000000, 0xc00011ac80) /usr/lib/go-1.15/src/syscall/exec_unix.go:167 +0x17d syscall.StartProcess(...) /usr/lib/go-1.15/src/syscall/exec_unix.go:263 os.startProcess(0xc000114240, 0x52, 0xc000420000, 0x7, 0x7, 0xc00011ae48, 0x0, 0x0, 0x0) /usr/lib/go-1.15/src/os/exec_posix.go:53 +0x29b os.StartProcess(0xc000114240, 0x52, 0xc000420000, 0x7, 0x7, 0xc00011ae48, 0x5, 0x148, 0x762940) /usr/lib/go-1.15/src/os/exec.go:102 +0x7c os/exec.(*Cmd).Start(0xc000422000, 0xc000422001, 0xc00040c340) /usr/lib/go-1.15/src/os/exec/exec.go:422 +0x528 os/exec.(*Cmd).Run(0xc000422000, 0xc00040c340, 0xc000070700) /usr/lib/go-1.15/src/os/exec/exec.go:338 +0x2b github.com/google/syzkaller/sys/targets.checkFlagSupported(0xc0002eac00, 0x76ee94, 0x7, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:835 +0x186 github.com/google/syzkaller/sys/targets.(*Target).lazyInit.func1(0xc000138a80, 0xc0002eac00, 0xc000138a66, 0x76ee94, 0x7) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:802 +0x6b created by github.com/google/syzkaller/sys/targets.(*Target).lazyInit /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:800 +0x7d8 goroutine 20 [runnable]: syscall.readlen(0xe, 0xc00011eb90, 0x8, 0x8, 0xc0002e9ad0, 0x6) /usr/lib/go-1.15/src/syscall/zsyscall_linux_amd64.go:934 +0xef syscall.forkExec(0xc000114240, 0x52, 0xc0002f7030, 0x7, 0x7, 0xc00011ecb0, 0x5, 0xaeb9f06800000000, 0xc00011ec80) /usr/lib/go-1.15/src/syscall/exec_unix.go:221 +0x405 syscall.StartProcess(...) /usr/lib/go-1.15/src/syscall/exec_unix.go:263 os.startProcess(0xc000114240, 0x52, 0xc0002f7030, 0x7, 0x7, 0xc00011ee48, 0x0, 0x0, 0x0) /usr/lib/go-1.15/src/os/exec_posix.go:53 +0x29b os.StartProcess(0xc000114240, 0x52, 0xc0002f7030, 0x7, 0x7, 0xc00011ee48, 0x5, 0x148, 0x762940) /usr/lib/go-1.15/src/os/exec.go:102 +0x7c os/exec.(*Cmd).Start(0xc0002fc840, 0xc0002fc801, 0xc00012ea00) /usr/lib/go-1.15/src/os/exec/exec.go:422 +0x528 os/exec.(*Cmd).Run(0xc0002fc840, 0xc00012ea00, 0xc000070f00) /usr/lib/go-1.15/src/os/exec/exec.go:338 +0x2b github.com/google/syzkaller/sys/targets.checkFlagSupported(0xc0002eac00, 0x77a9de, 0x17, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:835 +0x186 github.com/google/syzkaller/sys/targets.(*Target).lazyInit.func1(0xc000138a80, 0xc0002eac00, 0xc000138a67, 0x77a9de, 0x17) /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:802 +0x6b created by github.com/google/syzkaller/sys/targets.(*Target).lazyInit /syzkaller/gopath/src/github.com/google/syzkaller/sys/targets/targets.go:800 +0x7d8 VM DIAGNOSIS: 13:23:17 Registers: info registers vcpu 0 RAX=000000000000003d RBX=ffffffffc8f79b00 RCX=ffffffffc8f79b08 RDX=000000175556f0fc RSI=0000000000000003 RDI=ffffffffc8f79b00 RBP=fffffff00109dfd8 RSP=fffffff00109dfd8 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=00000007000000400000000004ec2100 XMM01=00000007000000400000000004ec2100 XMM02=00000000001000000000000000100000 XMM03=00007fa268c50c9b0000000000000000 XMM04=0f02000a0202000a0000000000000000 XMM05=00000000000000000000000000000600 XMM06=14000000000000000000000000000000 XMM07=000000500000000000000000160040be XMM08=ce042a754b055602d54965072a834639 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000000003d RBX=ffffffffc8f79dc0 RCX=ffffffffc8f79dc8 RDX=0000001026905fcf RSI=0000000000000003 RDI=ffffffffc8f79dc0 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 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 ffffffffc8f79dc0 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 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 info registers vcpu 2 RAX=000000000000003d RBX=ffffffffc8f7a080 RCX=ffffffffc8f7a088 RDX=00000010269080cf 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=0000001026909f2f RSI=0000000000000003 RDI=ffffffffc8f7a340 RBP=fffffff00000ffd8 RSP=fffffff00000ffd8 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 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