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]:49548' (ED25519) to the list of known hosts. [ 102.311742][ T801] cfg80211: failed to load regulatory.db 2026/04/29 08:39:43 parsed 1 programs [ 106.371183][ T5297] cgroup: Unknown subsys name 'net' [ 106.432828][ T5297] cgroup: Unknown subsys name 'cpuset' [ 106.440081][ T5297] cgroup: Unknown subsys name 'rlimit' [ 143.257991][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.261373][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 160.554618][ T1025] ata1.00: exception Emask 0x0 SAct 0x1000000 SErr 0x0 action 0x6 frozen [ 160.559970][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 160.562866][ T1025] ata1.00: cmd 61/00:c0:5e:8b:04/20:00:00:00:00/40 tag 24 ncq dma 4194304 ou [ 160.562866][ T1025] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 160.570983][ T1025] ata1.00: status: { DRDY } [ 160.573276][ T1025] ata1: hard resetting link [ 160.897579][ T1025] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 160.902198][ T1025] ata1.00: configured for UDMA/100 [ 160.905249][ T1025] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 160.955336][ T1025] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 160.958731][ T1025] ata1: failed to read log page 10h (errno=-5) [ 160.961602][ T1025] ata1.00: NCQ disabled due to excessive errors [ 160.974902][ T1025] ata1.00: exception Emask 0x1 SAct 0x1c00 SErr 0x0 action 0x0 [ 160.984377][ T1025] ata1.00: irq_stat 0x41000008 [ 160.986895][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 160.995211][ T1025] ata1.00: cmd 61/00:50:36:01:05/20:00:00:00:00/40 tag 10 ncq dma 4194304 ou [ 160.995211][ T1025] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 161.013675][ T1025] ata1.00: status: { DRDY } [ 161.016111][ T1025] ata1.00: error: { ABRT } [ 161.018521][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 161.021215][ T1025] ata1.00: cmd 61/00:58:36:21:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 161.021215][ T1025] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 161.032339][ T1025] ata1.00: status: { DRDY } [ 161.034740][ T1025] ata1.00: error: { ABRT } [ 161.036978][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 161.039981][ T1025] ata1.00: cmd 61/00:60:36:41:05/20:00:00:00:00/40 tag 12 ncq dma 4194304 ou [ 161.039981][ T1025] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 161.048502][ T1025] ata1.00: status: { DRDY } [ 161.050503][ T1025] ata1.00: error: { ABRT } [ 161.054023][ T1025] ata1.00: configured for UDMA/100 [ 161.058284][ T1025] ata1: EH complete Setting up swapspace version 1, size = 127995904 bytes [ 162.877559][ T5297] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 169.399707][ T5327] 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. [ 171.890215][ T5337] bridge0: port 1(bridge_slave_0) entered blocking state [ 171.895466][ T5337] bridge0: port 1(bridge_slave_0) entered disabled state [ 171.900054][ T5337] bridge_slave_0: entered allmulticast mode [ 171.905637][ T5337] bridge_slave_0: entered promiscuous mode [ 171.915796][ T5337] bridge0: port 2(bridge_slave_1) entered blocking state [ 171.921654][ T5337] bridge0: port 2(bridge_slave_1) entered disabled state [ 171.926068][ T5337] bridge_slave_1: entered allmulticast mode [ 171.930376][ T5337] bridge_slave_1: entered promiscuous mode [ 171.963545][ T5337] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 171.973110][ T5337] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 172.057462][ T5337] team0: Port device team_slave_0 added [ 172.065162][ T5337] team0: Port device team_slave_1 added [ 172.126778][ T5337] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 172.130787][ T5337] 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. [ 172.155347][ T5337] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 172.170542][ T5337] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 172.184771][ T5337] 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. [ 172.204324][ T5337] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 172.270421][ T5337] hsr_slave_0: entered promiscuous mode [ 172.274949][ T5337] hsr_slave_1: entered promiscuous mode [ 172.659635][ T5337] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 172.716482][ T5337] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 172.740712][ T5337] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 172.759252][ T5337] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 172.769981][ T5337] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 172.789229][ T5337] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 172.807830][ T5337] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 172.828333][ T5337] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 173.122779][ T5337] 8021q: adding VLAN 0 to HW filter on device bond0 [ 173.197675][ T5337] 8021q: adding VLAN 0 to HW filter on device team0 [ 173.223441][ T1167] bridge0: port 1(bridge_slave_0) entered blocking state [ 173.228054][ T1167] bridge0: port 1(bridge_slave_0) entered forwarding state [ 173.246727][ T1167] bridge0: port 2(bridge_slave_1) entered blocking state [ 173.250356][ T1167] bridge0: port 2(bridge_slave_1) entered forwarding state [ 173.706640][ T5337] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 173.766965][ T5337] veth0_vlan: entered promiscuous mode [ 173.783204][ T5337] veth1_vlan: entered promiscuous mode [ 173.833325][ T5337] veth0_macvtap: entered promiscuous mode [ 173.842651][ T5337] veth1_macvtap: entered promiscuous mode [ 173.866057][ T5337] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 173.883967][ T5337] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 173.911596][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 173.927140][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 173.938312][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 173.949787][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 174.508396][ T131] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 175.007734][ T1167] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 175.012856][ T1167] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 175.090763][ T131] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 175.137784][ T30] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 175.143939][ T30] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 175.673384][ T131] netdevsim netdevsim0 netdevsim1 (unregistering): unset [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-build4160211322=/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 d1b870e1003b 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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" -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=\"d1b870e1003b52891d2196c1e2ee42fe905010ba\" /usr/bin/ld: /tmp/ccP55iHM.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 ./tools/check-syzos.sh 2>/dev/null