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]:51586' (ED25519) to the list of known hosts. 2026/04/07 10:16:38 parsed 1 programs [ 97.273405][ T922] cfg80211: failed to load regulatory.db [ 99.484760][ T5312] cgroup: Unknown subsys name 'net' [ 99.541357][ T5312] cgroup: Unknown subsys name 'cpuset' [ 99.548327][ T5312] cgroup: Unknown subsys name 'rlimit' [ 143.350938][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.354832][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 155.527018][ T1012] ata1.00: exception Emask 0x0 SAct 0x800 SErr 0x0 action 0x6 frozen [ 155.531081][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 155.534192][ T1012] ata1.00: cmd 61/00:58:36:c1:04/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 155.534192][ T1012] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 155.543114][ T1012] ata1.00: status: { DRDY } [ 155.545690][ T1012] ata1: hard resetting link [ 155.870326][ T1012] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 155.876348][ T1012] ata1.00: configured for UDMA/100 [ 155.879708][ T1012] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 204.789459][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 204.792733][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 216.327078][ T1012] ata1.00: exception Emask 0x0 SAct 0x20 SErr 0x0 action 0x6 frozen [ 216.330279][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 216.332849][ T1012] ata1.00: cmd 61/00:28:36:3e:05/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 216.332849][ T1012] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 216.344019][ T1012] ata1.00: status: { DRDY } [ 216.346389][ T1012] ata1: hard resetting link [ 216.669418][ T1012] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 216.674310][ T1012] ata1.00: configured for UDMA/100 [ 216.678338][ T1012] ata1: EH complete [ 218.514108][ T5312] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 221.288267][ T1012] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 221.291589][ T1012] ata1: failed to read log page 10h (errno=-5) [ 221.294345][ T1012] ata1.00: NCQ disabled due to excessive errors [ 221.325284][ T1012] ata1.00: exception Emask 0x1 SAct 0x1800 SErr 0x0 action 0x0 [ 221.335360][ T1012] ata1.00: irq_stat 0x41000000 [ 221.344324][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 221.356847][ T1012] ata1.00: cmd 61/00:58:36:5e:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 221.356847][ T1012] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 221.385613][ T1012] ata1.00: status: { DRDY } [ 221.387733][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 221.390400][ T1012] ata1.00: cmd 61/00:60:36:7e:05/03:00:00:00:00/40 tag 12 ncq dma 393216 out [ 221.390400][ T1012] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 221.418589][ T1012] ata1.00: status: { DRDY } [ 221.427218][ T1012] ata1.00: configured for UDMA/100 [ 221.440447][ T1012] ata1: EH complete [ 223.735663][ T45] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 223.741910][ T5361] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 223.745787][ T5361] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 223.750091][ T5361] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 223.756376][ T5361] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 224.685319][ T5357] 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. [ 225.828046][ T5361] Bluetooth: hci0: command tx timeout [ 229.272035][ T1085] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 229.275590][ T1085] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 229.378649][ T3027] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 229.396888][ T3027] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build3670158678=/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 804b39197cac 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=804b39197cace4df6f069d31e585d66e9c136a88 -X github.com/google/syzkaller/prog.gitRevisionDate=20250620-114816" -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=\"804b39197cace4df6f069d31e585d66e9c136a88\" /usr/bin/ld: /tmp/ccisEkkm.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