lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x185000) Warning: Permanently added '[localhost]:36717' (ED25519) to the list of known hosts. [ 97.184365][ T52] cfg80211: failed to load regulatory.db 2026/07/13 09:47:49 ignoring optional flag "type"="qemu" 2026/07/13 09:47:50 parsed 1 programs [ 101.481660][ T5293] cgroup: Unknown subsys name 'net' [ 101.552448][ T5293] cgroup: Unknown subsys name 'cpuset' [ 101.560167][ T5293] cgroup: Unknown subsys name 'rlimit' [ 143.260258][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.263833][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 151.596335][ T1030] ata1.00: exception Emask 0x0 SAct 0x40000000 SErr 0x0 action 0x6 frozen [ 151.599887][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 151.602587][ T1030] ata1.00: cmd 61/28:f0:96:9c:04/0c:00:00:00:00/40 tag 30 ncq dma 1593344 ou [ 151.602587][ T1030] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 151.611307][ T1030] ata1.00: status: { DRDY } [ 151.613571][ T1030] ata1: hard resetting link [ 151.938189][ T1030] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 151.942813][ T1030] ata1.00: configured for UDMA/100 [ 151.945763][ T1030] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 204.698663][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 204.702161][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 212.396398][ T1030] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 action 0x6 frozen [ 212.401083][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.403885][ T1030] ata1.00: cmd 61/00:70:36:e1:04/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou [ 212.403885][ T1030] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 212.412218][ T1030] ata1.00: status: { DRDY } [ 212.415716][ T1030] ata1: hard resetting link [ 212.740016][ T1030] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 212.745049][ T1030] ata1.00: configured for UDMA/100 [ 212.748605][ T1030] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x345000) [ 212.797401][ T1030] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 212.800820][ T1030] ata1: failed to read log page 10h (errno=-5) [ 212.803720][ T1030] ata1.00: NCQ disabled due to excessive errors [ 212.818816][ T1030] ata1.00: exception Emask 0x1 SAct 0x3f8 SErr 0x0 action 0x0 [ 212.828543][ T1030] ata1.00: irq_stat 0x41000000 [ 212.837123][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.840532][ T1030] ata1.00: cmd 61/58:18:36:01:05/0c:00:00:00:00/40 tag 3 ncq dma 1617920 ou [ 212.840532][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.856800][ T1030] ata1.00: status: { DRDY } [ 212.864241][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.874044][ T1030] ata1.00: cmd 61/00:20:8e:0d:05/20:00:00:00:00/40 tag 4 ncq dma 4194304 ou [ 212.874044][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.882393][ T1030] ata1.00: status: { DRDY } [ 212.885017][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.888434][ T1030] ata1.00: cmd 61/a8:28:8e:2d:05/13:00:00:00:00/40 tag 5 ncq dma 2576384 ou [ 212.888434][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.896982][ T1030] ata1.00: status: { DRDY } [ 212.899456][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.902184][ T1030] ata1.00: cmd 61/30:30:36:41:05/12:00:00:00:00/40 tag 6 ncq dma 2383872 ou [ 212.902184][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.910923][ T1030] ata1.00: status: { DRDY } [ 212.913236][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.916409][ T1030] ata1.00: cmd 61/48:38:66:53:05/03:00:00:00:00/40 tag 7 ncq dma 430080 out [ 212.916409][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.924452][ T1030] ata1.00: status: { DRDY } [ 212.927386][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.930266][ T1030] ata1.00: cmd 61/28:40:ae:56:05/1a:00:00:00:00/40 tag 8 ncq dma 3428352 ou [ 212.930266][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.938851][ T1030] ata1.00: status: { DRDY } [ 212.941025][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.943745][ T1030] ata1.00: cmd 61/60:48:d6:70:05/10:00:00:00:00/40 tag 9 ncq dma 2146304 ou [ 212.943745][ T1030] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 212.952201][ T1030] ata1.00: status: { DRDY } [ 212.955537][ T1030] ata1.00: configured for UDMA/100 [ 212.959812][ T1030] 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-build679482127=/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 6f888b7530 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=6f888b7530906167ecb1f5a35e060fec736d6d32 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240919-083833'" "-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=\"6f888b7530906167ecb1f5a35e060fec736d6d32\" /usr/bin/ld: /tmp/ccg94Ibt.o: in function `test_cover_filter()': executor.cc:(.text+0x1683b): warning: the use of `tempnam' is dangerous, better use `mkstemp' /usr/bin/ld: /tmp/ccg94Ibt.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