2021/08/06 12:37:42 fuzzer started
runtime: failed to create new OS thread (have 7 already; errno=11)
runtime: may need to increase max user processes (ulimit -u)
fatal error: newosproc

goroutine 19 [running]:
runtime.throw(0x771be4, 0x9)
	/usr/lib/go-1.15/src/runtime/panic.go:1116 +0x72 fp=0xc000070e08 sp=0xc000070dd8 pc=0x4364d2
runtime.newosproc(0xc000440000)
	/usr/lib/go-1.15/src/runtime/os_linux.go:161 +0x1c5 fp=0xc000070e68 sp=0xc000070e08 pc=0x432aa5
runtime.newm1(0xc000440000)
	/usr/lib/go-1.15/src/runtime/proc.go:1843 +0xdd fp=0xc000070ea8 sp=0xc000070e68 pc=0x43cabd
runtime.newm(0x78fca0, 0x0, 0xffffffffffffffff)
	/usr/lib/go-1.15/src/runtime/proc.go:1822 +0x9b fp=0xc000070ee0 sp=0xc000070ea8 pc=0x43c93b
runtime.startTemplateThread()
	/usr/lib/go-1.15/src/runtime/proc.go:1863 +0xb2 fp=0xc000070f10 sp=0xc000070ee0 pc=0x43cbb2
runtime.LockOSThread()
	/usr/lib/go-1.15/src/runtime/proc.go:3845 +0x6b fp=0xc000070f30 sp=0xc000070f10 pc=0x441e0b
runtime.ensureSigM.func1()
	/usr/lib/go-1.15/src/runtime/signal_unix.go:883 +0x48 fp=0xc000070fe0 sp=0xc000070f30 pc=0x464e28
runtime.goexit()
	/usr/lib/go-1.15/src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000070fe8 sp=0xc000070fe0 pc=0x46c2e1
created by runtime.ensureSigM
	/usr/lib/go-1.15/src/runtime/signal_unix.go:880 +0xd5

goroutine 1 [syscall]:
github.com/google/syzkaller/pkg/host.scanCPUInfo(0xc000117380, 0xc0000c9988)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/host/machine_info_linux.go:58 +0x4fc
github.com/google/syzkaller/pkg/host.readCPUInfo(0xc000117380, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/host/machine_info_linux.go:35 +0x134
github.com/google/syzkaller/pkg/host.CollectMachineInfo(0xc000100000, 0x0, 0x44118e, 0xc0000c9b00, 0x464a20)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/host/machine_info.go:19 +0x15c
main.collectMachineInfos(0xc0000af1e0, 0x78f698, 0xc00013e060, 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 33 [chan send]:
os/signal.signal_enable(0x92e2759900000002)
	/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(0xc00040c3c0, 0xc0000707a8, 0x2, 0x2)
	/usr/lib/go-1.15/src/os/signal/signal.go:164 +0x162
github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1(0xc00013e060)
	/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 34 [chan receive]:
main.main.func1(0xc00013e060)
	/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:
12:37:42  Registers:
info registers vcpu 0
RAX=0000000000004ad4 RBX=00000000000000f0 RCX=0000000000000838 RDX=0000000000000000
RSI=0000000000004ad4 RDI=0000000000000838 RBP=fffffff00109ded8 RSP=fffffff00109ded8
R8 =0000000000000001 R9 =0000000000000002 R10=0000000000000078 R11=ffffffffc8f79bb8
R12=0000000000000000 R13=0000000000004ad4 R14=0000000000000008 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=000000104fe93745
RSI=0000000000000003 RDI=ffffffffc8f79dc0 RBP=fffffff000015fd8 RSP=fffffff000015fd8
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 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=000000104fe917ef
RSI=0000000000000003 RDI=ffffffffc8f7a080 RBP=fffffff000012fd8 RSP=fffffff000012fd8
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 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 3
RAX=000000000000003d RBX=ffffffffc8f7a340 RCX=ffffffffc8f7a348 RDX=000000104fe8ee0a
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 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 ffffffffc8f7a340 ffffffff 00000000
LDT=0000 0000000000000000 ffffffff 00000000
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