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) [ 94.722127][ T1012] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 94.725426][ T1012] ata1: failed to read log page 10h (errno=-5) [ 94.728195][ T1012] ata1.00: exception Emask 0x1 SAct 0x1800 SErr 0x0 action 0x0 [ 94.750933][ T1012] ata1.00: irq_stat 0x41000000 [ 94.753342][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 94.757619][ T1012] ata1.00: cmd 61/00:58:c6:52:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 94.757619][ T1012] res 50/00:01:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 94.790699][ T1012] ata1.00: status: { DRDY } [ 94.793343][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 94.796611][ T1012] ata1.00: cmd 61/70:60:c6:72:05/0e:00:00:00:00/40 tag 12 ncq dma 1892352 ou [ 94.796611][ T1012] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 94.820782][ T1012] ata1.00: status: { DRDY } [ 94.824330][ T1012] ata1.00: configured for UDMA/100 [ 94.830955][ T1012] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 94.851537][ T1012] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 94.854649][ T1012] ata1: failed to read log page 10h (errno=-5) [ 94.858182][ T1012] ata1.00: exception Emask 0x1 SAct 0x18000000 SErr 0x0 action 0x0 [ 94.871151][ T1012] ata1.00: irq_stat 0x41000000 [ 94.873399][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 94.876934][ T1012] ata1.00: cmd 61/00:d8:36:81:05/20:00:00:00:00/40 tag 27 ncq dma 4194304 ou [ 94.876934][ T1012] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 94.900577][ T1012] ata1.00: status: { DRDY } [ 94.902600][ T1012] ata1.00: error: { ABRT } [ 94.905222][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 94.916296][ T1012] ata1.00: cmd 61/00:e0:c6:52:05/20:00:00:00:00/40 tag 28 ncq dma 4194304 ou [ 94.916296][ T1012] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 94.940768][ T1012] ata1.00: status: { DRDY } [ 94.943071][ T1012] ata1.00: error: { ABRT } [ 94.946609][ T1012] ata1.00: configured for UDMA/100 [ 94.960960][ T1012] ata1: EH complete Warning: Permanently added '[localhost]:48316' (ED25519) to the list of known hosts. [ 97.288593][ T1240] cfg80211: failed to load regulatory.db 2026/04/07 08:48:58 parsed 1 programs [ 101.655753][ T5309] cgroup: Unknown subsys name 'net' [ 101.725792][ T5309] cgroup: Unknown subsys name 'cpuset' [ 101.736024][ T5309] cgroup: Unknown subsys name 'rlimit' [ 103.811810][ T5309] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 109.423076][ T5334] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 109.437911][ T5334] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 109.444195][ T5334] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 109.451583][ T5334] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 109.456222][ T5334] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 110.438288][ T5331] 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. [ 111.684136][ T4666] Bluetooth: hci0: command tx timeout [ 113.761985][ T4666] Bluetooth: hci0: command tx timeout qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 115.052049][ T1012] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 115.056020][ T1012] ata1: failed to read log page 10h (errno=-5) [ 115.058834][ T1012] ata1.00: NCQ disabled due to excessive errors [ 115.090954][ T1012] ata1.00: exception Emask 0x1 SAct 0x700000 SErr 0x0 action 0x0 [ 115.098764][ T1012] ata1.00: irq_stat 0x41000000 [ 115.111303][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 115.114014][ T1012] ata1.00: cmd 61/70:a0:c6:f2:05/0e:00:00:00:00/40 tag 20 ncq dma 1892352 ou [ 115.114014][ T1012] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 115.144262][ T1012] ata1.00: status: { DRDY } [ 115.146721][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 115.149491][ T1012] ata1.00: cmd 61/00:a8:76:20:06/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 115.149491][ T1012] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 115.176070][ T1012] ata1.00: status: { DRDY } [ 115.178472][ T1012] ata1.00: failed command: WRITE FPDMA QUEUED [ 115.190825][ T1012] ata1.00: cmd 61/b8:b0:76:40:06/18:00:00:00:00/40 tag 22 ncq dma 3239936 ou [ 115.190825][ T1012] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 115.199408][ T1012] ata1.00: status: { DRDY } [ 115.221449][ T1012] ata1.00: configured for UDMA/100 [ 115.231391][ T1012] ata1: EH complete [ 115.921651][ T4666] Bluetooth: hci0: command tx timeout [ 118.001789][ T4666] Bluetooth: hci0: command tx timeout [ 123.417724][ T3041] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 123.425311][ T3041] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 123.557836][ T3041] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 123.580569][ T3041] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 127.059506][ T5373] chnl_net:caif_netlink_parms(): no params data found [ 127.289955][ T5373] bridge0: port 1(bridge_slave_0) entered blocking state [ 127.308185][ T5373] bridge0: port 1(bridge_slave_0) entered disabled state [ 127.312655][ T5373] bridge_slave_0: entered allmulticast mode [ 127.329031][ T5373] bridge_slave_0: entered promiscuous mode [ 127.351932][ T5373] bridge0: port 2(bridge_slave_1) entered blocking state [ 127.355593][ T5373] bridge0: port 2(bridge_slave_1) entered disabled state [ 127.360198][ T5373] bridge_slave_1: entered allmulticast mode [ 127.373545][ T5373] bridge_slave_1: entered promiscuous mode [ 127.461410][ T5373] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 127.492073][ T5373] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 127.552508][ T5373] team0: Port device team_slave_0 added [ 127.583280][ T5373] team0: Port device team_slave_1 added [ 127.685718][ T5373] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 127.688688][ T5373] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 127.741846][ T5373] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 127.763576][ T5373] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 127.766480][ T5373] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 127.839424][ T5373] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active 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-build256772330=/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 7d3b55db770e 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=7d3b55db770e482b0982dd02809974887cea30e1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241213-103606'" "-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=\"7d3b55db770e482b0982dd02809974887cea30e1\" /usr/bin/ld: /tmp/ccVvjV3d.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