lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x210000) [ 80.162513][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 80.165313][ T1020] ata1: failed to read log page 10h (errno=-5) [ 80.167923][ T1020] ata1.00: exception Emask 0x1 SAct 0x800 SErr 0x0 action 0x0 [ 80.171284][ T1020] ata1.00: irq_stat 0x41000008 [ 80.190721][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 80.198077][ T1020] ata1.00: cmd 61/80:58:d6:70:04/10:00:00:00:00/40 tag 11 ncq dma 2162688 ou [ 80.198077][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 80.213721][ T1020] ata1.00: status: { DRDY } [ 80.219637][ T1020] ata1.00: error: { ABRT } [ 80.226610][ T1020] ata1.00: configured for UDMA/100 [ 80.232520][ T1020] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:55141' (ED25519) to the list of known hosts. 2026/08/19 12:08:59 parsed 1 programs [ 89.889375][ T5284] cgroup: Unknown subsys name 'net' [ 89.956611][ T5284] cgroup: Unknown subsys name 'cpuset' [ 89.963870][ T5284] cgroup: Unknown subsys name 'rlimit' [ 91.804135][ T9] cfg80211: failed to load regulatory.db [ 112.301690][ T1020] ata1.00: exception Emask 0x0 SAct 0x20 SErr 0x0 action 0x6 frozen [ 112.305177][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 112.307926][ T1020] ata1.00: cmd 61/00:28:36:b1:04/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 112.307926][ T1020] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 112.315618][ T1020] ata1.00: status: { DRDY } [ 112.318197][ T1020] ata1: hard resetting link [ 112.643024][ T1020] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 112.647080][ T1020] ata1.00: configured for UDMA/100 [ 112.649543][ T1020] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 112.683530][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 112.691671][ T1020] ata1: failed to read log page 10h (errno=-5) [ 112.696502][ T1020] ata1.00: NCQ disabled due to excessive errors [ 112.702446][ T1020] ata1.00: exception Emask 0x1 SAct 0x1980 SErr 0x0 action 0x0 [ 112.712108][ T1020] ata1.00: irq_stat 0x41000000 [ 112.714587][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 112.718925][ T1020] ata1.00: cmd 61/00:38:36:b1:04/20:00:00:00:00/40 tag 7 ncq dma 4194304 ou [ 112.718925][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 112.726776][ T1020] ata1.00: status: { DRDY } [ 112.729043][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 112.732037][ T1020] ata1.00: cmd 61/08:40:9e:04:10/00:00:00:00:00/40 tag 8 ncq dma 4096 out [ 112.732037][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 112.739206][ T1020] ata1.00: status: { DRDY } [ 112.741188][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 112.744292][ T1020] ata1.00: cmd 61/00:58:36:31:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 112.744292][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 112.752160][ T1020] ata1.00: status: { DRDY } [ 112.754286][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 112.756874][ T1020] ata1.00: cmd 61/00:60:36:51:05/20:00:00:00:00/40 tag 12 ncq dma 4194304 ou [ 112.756874][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 112.765857][ T1020] ata1.00: status: { DRDY } [ 112.769561][ T1020] ata1.00: configured for UDMA/100 [ 112.772681][ T1020] ata1: EH complete [ 114.258750][ T5284] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 120.677916][ T5306] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 122.281775][ T5340] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 122.290266][ T5340] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 122.299610][ T5340] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 122.309385][ T5340] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 122.315837][ T5340] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 124.362453][ T5340] Bluetooth: hci0: command tx timeout [ 126.442097][ T5340] Bluetooth: hci0: command tx timeout qemu-system-x86_64: hw/ide/core.c:925: 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-build3255236562=/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 dcc075fb5d 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}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=dcc075fb5dfde991fc068b0cfbe08910e5980246 -X github.com/google/syzkaller/prog.gitRevisionDate=20250814-112955" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=dcc075fb5dfde991fc068b0cfbe08910e5980246 -X github.com/google/syzkaller/prog.gitRevisionDate=20250814-112955" ./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=dcc075fb5dfde991fc068b0cfbe08910e5980246 -X github.com/google/syzkaller/prog.gitRevisionDate=20250814-112955" -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=\"dcc075fb5dfde991fc068b0cfbe08910e5980246\" /usr/bin/ld: /tmp/cc5q5KS0.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