lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:27934' (ED25519) to the list of known hosts. 2026/05/05 16:39:13 ignoring optional flag "type"="qemu" 2026/05/05 16:39:14 parsed 1 programs [ 97.132052][ T1245] cfg80211: failed to load regulatory.db [ 97.342919][ T5293] cgroup: Unknown subsys name 'net' [ 97.395165][ T5293] cgroup: Unknown subsys name 'cpuset' [ 97.405425][ T5293] cgroup: Unknown subsys name 'rlimit' [ 143.204007][ T1329] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.206693][ T1329] ieee802154 phy1 wpan1: encryption failed: -22 [ 148.341205][ T1029] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 action 0x6 frozen [ 148.344719][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 148.347357][ T1029] ata1.00: cmd 61/00:70:36:5f:04/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou [ 148.347357][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 148.355096][ T1029] ata1.00: status: { DRDY } [ 148.357707][ T1029] ata1: hard resetting link [ 148.683428][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 148.689263][ T1029] ata1.00: configured for UDMA/100 [ 148.692880][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 204.643850][ T1329] ieee802154 phy0 wpan0: encryption failed: -22 [ 204.647331][ T1329] ieee802154 phy1 wpan1: encryption failed: -22 [ 209.141321][ T1029] ata1.00: exception Emask 0x0 SAct 0x1000000 SErr 0x0 action 0x6 frozen [ 209.145045][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.147736][ T1029] ata1.00: cmd 61/00:c0:36:e1:04/20:00:00:00:00/40 tag 24 ncq dma 4194304 ou [ 209.147736][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 209.155413][ T1029] ata1.00: status: { DRDY } [ 209.158956][ T1029] ata1: hard resetting link [ 209.481909][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 209.486738][ T1029] ata1.00: configured for UDMA/100 [ 209.489409][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 209.522929][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 209.535562][ T1029] ata1: failed to read log page 10h (errno=-5) [ 209.547692][ T1029] ata1.00: NCQ disabled due to excessive errors [ 209.563309][ T1029] ata1.00: exception Emask 0x1 SAct 0xfe80 SErr 0x0 action 0x0 [ 209.570827][ T1029] ata1.00: irq_stat 0x40000000 [ 209.573478][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.576211][ T1029] ata1.00: cmd 61/00:38:36:01:05/20:00:00:00:00/40 tag 7 ncq dma 4194304 ou [ 209.576211][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.585856][ T1029] ata1.00: status: { DRDY } [ 209.588304][ T1029] ata1.00: error: { ABRT } [ 209.590389][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.593366][ T1029] ata1.00: cmd 61/28:48:6e:31:05/03:00:00:00:00/40 tag 9 ncq dma 413696 out [ 209.593366][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.600794][ T1029] ata1.00: status: { DRDY } [ 209.603196][ T1029] ata1.00: error: { ABRT } [ 209.605288][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.607988][ T1029] ata1.00: cmd 61/a0:50:96:34:05/0c:00:00:00:00/40 tag 10 ncq dma 1654784 ou [ 209.607988][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.615986][ T1029] ata1.00: status: { DRDY } [ 209.618197][ T1029] ata1.00: error: { ABRT } [ 209.620164][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.623188][ T1029] ata1.00: cmd 61/00:58:36:41:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 209.623188][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.630815][ T1029] ata1.00: status: { DRDY } [ 209.633001][ T1029] ata1.00: error: { ABRT } [ 209.635302][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.638065][ T1029] ata1.00: cmd 61/00:60:36:61:05/20:00:00:00:00/40 tag 12 ncq dma 4194304 ou [ 209.638065][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.645658][ T1029] ata1.00: status: { DRDY } [ 209.647725][ T1029] ata1.00: error: { ABRT } [ 209.649776][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.652709][ T1029] ata1.00: cmd 61/00:68:36:81:05/20:00:00:00:00/40 tag 13 ncq dma 4194304 ou [ 209.652709][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.660352][ T1029] ata1.00: status: { DRDY } [ 209.662646][ T1029] ata1.00: error: { ABRT } [ 209.664709][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.667331][ T1029] ata1.00: cmd 61/00:70:36:a1:05/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou [ 209.667331][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.674943][ T1029] ata1.00: status: { DRDY } [ 209.677074][ T1029] ata1.00: error: { ABRT } [ 209.679064][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 209.682084][ T1029] ata1.00: cmd 61/00:78:36:c1:05/20:00:00:00:00/40 tag 15 ncq dma 4194304 ou [ 209.682084][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 209.690092][ T1029] ata1.00: status: { DRDY } [ 209.692413][ T1029] ata1.00: error: { ABRT } [ 209.695405][ T1029] ata1.00: configured for UDMA/100 [ 209.698568][ T1029] ata1: EH complete qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed. Connection to localhost closed by remote host. syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2197833334=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 464ac2eda061 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen go fmt ./sys/... >/dev/null touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=464ac2eda061918b0834afc83052d755176d25a1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240905-083905'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"464ac2eda061918b0834afc83052d755176d25a1\" /usr/bin/ld: /tmp/cctUC0TN.o: in function `test_cover_filter()': executor.cc:(.text+0x167fb): warning: the use of `tempnam' is dangerous, better use `mkstemp' /usr/bin/ld: /tmp/cctUC0TN.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking