lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x111000) [ 79.671180][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 79.682844][ T1020] ata1: failed to read log page 10h (errno=-5) [ 79.693337][ T1020] ata1.00: exception Emask 0x1 SAct 0xc000 SErr 0x0 action 0x0 [ 79.705695][ T1020] ata1.00: irq_stat 0x41000000 [ 79.709119][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 79.716119][ T1020] ata1.00: cmd 61/88:70:fe:a0:04/08:00:00:00:00/40 tag 14 ncq dma 1118208 ou [ 79.716119][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 79.733359][ T1020] ata1.00: status: { DRDY } [ 79.739007][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 79.745663][ T1020] ata1.00: cmd 61/b8:78:86:a9:04/05:00:00:00:00/40 tag 15 ncq dma 749568 out [ 79.745663][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 79.768978][ T1020] ata1.00: status: { DRDY } [ 79.775552][ T1020] ata1.00: configured for UDMA/100 [ 79.782858][ T1020] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 81.773097][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 81.788142][ T1020] ata1: failed to read log page 10h (errno=-5) [ 81.794338][ T1020] ata1.00: exception Emask 0x1 SAct 0x600000 SErr 0x0 action 0x0 [ 81.808879][ T1020] ata1.00: irq_stat 0x41000000 [ 81.815567][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 81.825687][ T1020] ata1.00: cmd 61/00:a8:36:61:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 81.825687][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 81.854722][ T1020] ata1.00: status: { DRDY } [ 81.863667][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 81.868153][ T1020] ata1.00: cmd 61/00:b0:36:81:05/20:00:00:00:00/40 tag 22 ncq dma 4194304 ou [ 81.868153][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 81.874984][ T1020] ata1.00: status: { DRDY } [ 81.878498][ T1020] ata1.00: configured for UDMA/100 [ 81.881263][ T1020] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 81.898197][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 81.900966][ T1020] ata1: failed to read log page 10h (errno=-5) [ 81.903403][ T1020] ata1.00: NCQ disabled due to excessive errors [ 81.905956][ T1020] ata1.00: exception Emask 0x1 SAct 0xe00 SErr 0x0 action 0x0 [ 81.909896][ T1020] ata1.00: irq_stat 0x41000000 [ 81.911755][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 81.914284][ T1020] ata1.00: cmd 61/18:48:36:a1:05/14:00:00:00:00/40 tag 9 ncq dma 2633728 ou [ 81.914284][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 81.921430][ T1020] ata1.00: status: { DRDY } [ 81.923345][ T1020] ata1.00: error: { ABRT } [ 81.925147][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 81.928125][ T1020] ata1.00: cmd 61/00:50:36:61:05/20:00:00:00:00/40 tag 10 ncq dma 4194304 ou [ 81.928125][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 81.935235][ T1020] ata1.00: status: { DRDY } [ 81.937679][ T1020] ata1.00: error: { ABRT } [ 81.939765][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 81.942333][ T1020] ata1.00: cmd 61/00:58:36:81:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 81.942333][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 81.949926][ T1020] ata1.00: status: { DRDY } [ 81.951905][ T1020] ata1.00: error: { ABRT } [ 81.954767][ T1020] ata1.00: configured for UDMA/100 [ 81.957982][ T1020] ata1: EH complete Warning: Permanently added '[localhost]:25651' (ED25519) to the list of known hosts. 2026/08/15 17:10:45 parsed 1 programs [ 89.994657][ T5282] cgroup: Unknown subsys name 'net' [ 90.061971][ T5282] cgroup: Unknown subsys name 'cpuset' [ 90.069561][ T5282] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.607867][ T5282] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.876496][ T9] cfg80211: failed to load regulatory.db [ 95.362213][ T5298] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 95.368616][ T5298] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 95.373085][ T5298] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 95.378642][ T5298] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 95.382534][ T5298] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 95.631407][ T5297] 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. [ 100.143490][ T5357] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.147339][ T5357] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.150469][ T5357] bridge_slave_0: entered allmulticast mode [ 100.154192][ T5357] bridge_slave_0: entered promiscuous mode [ 100.162024][ T5357] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.165085][ T5357] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.168475][ T5357] bridge_slave_1: entered allmulticast mode [ 100.172210][ T5357] bridge_slave_1: entered promiscuous mode [ 100.198924][ T5357] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.205265][ T5357] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.235195][ T5357] team0: Port device team_slave_0 added [ 100.240475][ T5357] team0: Port device team_slave_1 added [ 100.265685][ T5357] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.268945][ T5357] 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. [ 100.280646][ T5357] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.288059][ T5357] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.291215][ T5357] 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. [ 100.302649][ T5357] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.351463][ T5357] hsr_slave_0: entered promiscuous mode [ 100.354921][ T5357] hsr_slave_1: entered promiscuous mode [ 100.545613][ T5357] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 100.558293][ T5357] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 100.563819][ T5357] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 100.571365][ T5357] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 100.576260][ T5357] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 100.585276][ T5357] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 100.593814][ T5357] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 100.602519][ T5357] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 100.640554][ T5357] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.644173][ T5357] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.647830][ T5357] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.651029][ T5357] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.719919][ T5357] 8021q: adding VLAN 0 to HW filter on device bond0 [ 100.736027][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.742720][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.757746][ T5357] 8021q: adding VLAN 0 to HW filter on device team0 [ 100.768581][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.771830][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.788012][ T61] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.791281][ T61] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.203664][ T5357] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.254568][ T5357] veth0_vlan: entered promiscuous mode [ 101.266332][ T5357] veth1_vlan: entered promiscuous mode [ 101.304773][ T5357] veth0_macvtap: entered promiscuous mode [ 101.312776][ T5357] veth1_macvtap: entered promiscuous mode [ 101.333215][ T5357] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.346579][ T5357] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.460079][ T179] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.478021][ T179] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.490787][ T179] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.505666][ T179] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.604182][ T179] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.663233][ T179] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.709033][ T179] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.778653][ T179] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.825569][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 101.838120][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 101.875981][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 101.881619][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build2589774259=/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 d1b870e100 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/ccomSb2T.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