lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xfc000) Warning: Permanently added '[localhost]:44980' (ED25519) to the list of known hosts. 2026/07/23 20:21:38 parsed 1 programs [ 88.101829][ T5296] cgroup: Unknown subsys name 'net' [ 88.156060][ T5296] cgroup: Unknown subsys name 'cpuset' [ 88.164041][ T5296] cgroup: Unknown subsys name 'rlimit' [ 91.815095][ T10] cfg80211: failed to load regulatory.db [ 137.893665][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 137.897078][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 144.951413][ T1027] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 action 0x6 frozen [ 144.954983][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 144.957274][ T1027] ata1.00: cmd 61/e0:70:46:5c:04/07:00:00:00:00/40 tag 14 ncq dma 1032192 ou [ 144.957274][ T1027] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 144.964544][ T1027] ata1.00: status: { DRDY } [ 144.967031][ T1027] ata1: hard resetting link [ 145.282203][ T1027] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 145.287045][ T1027] ata1.00: configured for UDMA/100 [ 145.289612][ T1027] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 145.314757][ C0] ata1: illegal qc_active transition (00000000->00000001) [ 145.318677][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 145.330602][ T1027] ata1: failed to read log page 10h (errno=-5) [ 145.338294][ T1027] ata1.00: exception Emask 0x1 SAct 0x1c00 SErr 0x0 action 0x6 frozen [ 145.351196][ T1027] ata1.00: irq_stat 0x41000000 [ 145.353519][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 145.356848][ T1027] ata1.00: cmd 61/00:50:36:01:05/20:00:00:00:00/40 tag 10 ncq dma 4194304 ou [ 145.356848][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 145.373744][ T1027] ata1.00: status: { DRDY } [ 145.381290][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 145.384131][ T1027] ata1.00: cmd 61/00:58:36:21:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 145.384131][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 145.394615][ T1027] ata1.00: status: { DRDY } [ 145.396719][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 145.399218][ T1027] ata1.00: cmd 61/e0:60:36:41:05/10:00:00:00:00/40 tag 12 ncq dma 2211840 ou [ 145.399218][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 145.407964][ T1027] ata1.00: status: { DRDY } [ 145.409919][ T1027] ata1: hard resetting link [ 145.731985][ T1027] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 145.736247][ T1027] ata1.00: configured for UDMA/100 [ 146.051957][ T1027] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 146.055658][ T1027] ata1.00: configured for UDMA/100 [ 146.057929][ T1027] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 146.082934][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 146.085857][ T1027] ata1: failed to read log page 10h (errno=-5) [ 146.088450][ T1027] ata1.00: NCQ disabled due to excessive errors [ 146.093024][ T1027] ata1.00: exception Emask 0x1 SAct 0x600000 SErr 0x0 action 0x0 [ 146.097282][ T1027] ata1.00: irq_stat 0x41000008 [ 146.099398][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 146.102636][ T1027] ata1.00: cmd 61/00:a8:36:21:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 146.102636][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 146.109860][ T1027] ata1.00: status: { DRDY } [ 146.112799][ T1027] ata1.00: error: { ABRT } [ 146.114887][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 146.117471][ T1027] ata1.00: cmd 61/e0:b0:36:41:05/10:00:00:00:00/40 tag 22 ncq dma 2211840 ou [ 146.117471][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 146.125143][ T1027] ata1.00: status: { DRDY } [ 146.127620][ T1027] ata1.00: error: { ABRT } [ 146.130629][ T1027] ata1.00: configured for UDMA/100 [ 146.133920][ T1027] 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-build3719863431=/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 a21a8419b6 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 touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=a21a8419b67b5ef8ebc3d6dd834d065e6860c41f -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250203-100841'" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"a21a8419b67b5ef8ebc3d6dd834d065e6860c41f\" /usr/bin/ld: /tmp/ccz0FGyY.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