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) [ 87.189566][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 87.198315][ T1029] ata1: failed to read log page 10h (errno=-5) [ 87.205294][ T1029] ata1.00: exception Emask 0x1 SAct 0x60 SErr 0x0 action 0x0 [ 87.219164][ T1029] ata1.00: irq_stat 0x41000000 [ 87.229159][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.238647][ T1029] ata1.00: cmd 61/00:28:ce:51:04/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 87.238647][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.263203][ T1029] ata1.00: status: { DRDY } [ 87.271040][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.283642][ T1029] ata1.00: cmd 61/48:30:ce:71:04/07:00:00:00:00/40 tag 6 ncq dma 954368 out [ 87.283642][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.305891][ T1029] ata1.00: status: { DRDY } [ 87.310647][ T1029] ata1.00: configured for UDMA/100 [ 87.318335][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 96.941953][ T78] cfg80211: failed to load regulatory.db [ 117.437820][ T1029] ata1.00: exception Emask 0x0 SAct 0x8000000 SErr 0x0 action 0x6 frozen [ 117.441543][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 117.444133][ T1029] ata1.00: cmd 61/00:d8:36:c1:04/20:00:00:00:00/40 tag 27 ncq dma 4194304 ou [ 117.444133][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 117.451338][ T1029] ata1.00: status: { DRDY } [ 117.453900][ T1029] ata1: hard resetting link [ 117.780198][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 117.784459][ T1029] ata1.00: configured for UDMA/100 [ 117.787074][ T1029] ata1: EH complete Warning: Permanently added '[localhost]:24938' (ED25519) to the list of known hosts. 2026/05/30 10:39:39 parsed 1 programs [ 125.881001][ T5316] cgroup: Unknown subsys name 'net' [ 125.952858][ T5316] cgroup: Unknown subsys name 'cpuset' [ 125.959990][ T5316] cgroup: Unknown subsys name 'rlimit' [ 127.608258][ T5316] 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 (0xb7000) [ 130.460889][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 130.473150][ T1029] ata1: failed to read log page 10h (errno=-5) [ 130.484906][ T1029] ata1.00: NCQ disabled due to excessive errors [ 130.497405][ T1029] ata1.00: exception Emask 0x1 SAct 0x40000001 SErr 0x0 action 0x0 [ 130.512018][ T1029] ata1.00: irq_stat 0x41000000 [ 130.521012][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 130.527884][ T1029] ata1.00: cmd 61/20:00:16:98:05/09:00:00:00:00/40 tag 0 ncq dma 1196032 ou [ 130.527884][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 130.546136][ T1029] ata1.00: status: { DRDY } [ 130.549389][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 130.555122][ T1029] ata1.00: cmd 61/b8:f0:5e:92:05/05:00:00:00:00/40 tag 30 ncq dma 749568 out [ 130.555122][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 130.570899][ T1029] ata1.00: status: { DRDY } [ 130.577080][ T1029] ata1.00: configured for UDMA/100 [ 130.583537][ T1029] ata1: EH complete [ 133.836322][ T5336] 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. [ 135.578155][ T5368] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 135.587129][ T5368] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 135.594230][ T5368] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 135.602299][ T5368] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 135.606907][ T5368] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 137.738542][ T4657] Bluetooth: hci0: command tx timeout [ 137.750012][ T5338] bridge0: port 1(bridge_slave_0) entered blocking state [ 137.778218][ T5338] bridge0: port 1(bridge_slave_0) entered disabled state [ 137.804241][ T5338] bridge_slave_0: entered allmulticast mode [ 137.825399][ T5338] bridge_slave_0: entered promiscuous mode [ 137.876670][ T5338] bridge0: port 2(bridge_slave_1) entered blocking state [ 137.902726][ T5338] bridge0: port 2(bridge_slave_1) entered disabled state [ 137.923163][ T5338] bridge_slave_1: entered allmulticast mode [ 137.946581][ T5338] bridge_slave_1: entered promiscuous mode [ 138.441674][ T5338] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 138.467787][ T5338] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 139.044473][ T5338] team0: Port device team_slave_0 added [ 139.742316][ T5338] team0: Port device team_slave_1 added [ 141.004095][ T5338] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 141.016369][ T5338] 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. [ 141.055577][ T5338] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 141.086515][ T5338] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 141.100793][ T5338] 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. [ 141.133107][ T5338] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 141.651873][ T5338] hsr_slave_0: entered promiscuous mode [ 141.888830][ T5338] hsr_slave_1: entered promiscuous mode [ 143.021140][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.024806][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 [ 143.590799][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 143.607847][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 145.073458][ T1161] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 145.076975][ T1161] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 149.760576][ T5338] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 149.808814][ T5338] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 149.818253][ T5338] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 149.841262][ T5338] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 149.858427][ T5338] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 149.879076][ T5338] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 149.889062][ T5338] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 149.915134][ T5338] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 153.979477][ T5338] 8021q: adding VLAN 0 to HW filter on device bond0 [ 154.059402][ T5338] 8021q: adding VLAN 0 to HW filter on device team0 [ 154.092164][ T41] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.095021][ T41] bridge0: port 1(bridge_slave_0) entered forwarding state [ 154.147314][ T41] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.150554][ T41] bridge0: port 2(bridge_slave_1) entered forwarding state [ 159.942751][ T5338] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 160.076206][ T5338] veth0_vlan: entered promiscuous mode [ 160.112288][ T5338] veth1_vlan: entered promiscuous mode [ 160.343088][ T5338] veth0_macvtap: entered promiscuous mode [ 160.665113][ T5338] veth1_macvtap: entered promiscuous mode [ 160.713879][ T5338] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 160.741731][ T5338] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 160.779070][ T41] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 160.895798][ T41] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 160.909492][ T41] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 160.914778][ T41] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 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-build1509106109=/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 d34966d146f5 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=d34966d146f584d390b49f213d1fccd59548dc6d -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250221-172117'" -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=\"d34966d146f584d390b49f213d1fccd59548dc6d\" /usr/bin/ld: /tmp/ccfoYmwZ.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