lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x32e000) [ 87.601464][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 87.608817][ T1027] ata1: failed to read log page 10h (errno=-5) [ 87.616310][ T1027] ata1.00: exception Emask 0x1 SAct 0x1e00 SErr 0x0 action 0x0 [ 87.622613][ T1027] ata1.00: irq_stat 0x41000000 [ 87.633050][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.639858][ T1027] ata1.00: cmd 61/f8:48:3e:61:04/1f:00:00:00:00/40 tag 9 ncq dma 4190208 ou [ 87.639858][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.656176][ T1027] ata1.00: status: { DRDY } [ 87.664582][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.671744][ T1027] ata1.00: cmd 61/00:50:36:81:04/20:00:00:00:00/40 tag 10 ncq dma 4194304 ou [ 87.671744][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.692083][ T1027] ata1.00: status: { DRDY } [ 87.696899][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.706732][ T1027] ata1.00: cmd 61/70:58:36:a1:04/19:00:00:00:00/40 tag 11 ncq dma 3334144 ou [ 87.706732][ T1027] res 50/00:01:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.719968][ T1027] ata1.00: status: { DRDY } [ 87.736226][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.739986][ T1027] ata1.00: cmd 61/08:60:a6:ba:04/04:00:00:00:00/40 tag 12 ncq dma 528384 out [ 87.739986][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.752154][ T1027] ata1.00: status: { DRDY } [ 87.759132][ T1027] ata1.00: configured for UDMA/100 [ 87.770149][ T1027] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x32e000) [ 87.809508][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 87.818079][ T1027] ata1: failed to read log page 10h (errno=-5) [ 87.824550][ T1027] ata1.00: NCQ disabled due to excessive errors [ 87.830393][ T1027] ata1.00: exception Emask 0x1 SAct 0x40000001 SErr 0x0 action 0x0 [ 87.840334][ T1027] ata1.00: irq_stat 0x41000000 [ 87.847140][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.854405][ T1027] ata1.00: cmd 61/08:00:a6:ba:04/04:00:00:00:00/40 tag 0 ncq dma 528384 out [ 87.854405][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.877139][ T1027] ata1.00: status: { DRDY } [ 87.882281][ T1027] ata1.00: error: { ABRT } [ 87.884928][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.893399][ T1027] ata1.00: cmd 61/70:f0:36:a1:04/19:00:00:00:00/40 tag 30 ncq dma 3334144 ou [ 87.893399][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.925710][ T1027] ata1.00: status: { DRDY } [ 87.928008][ T1027] ata1.00: error: { ABRT } [ 87.938318][ T1027] ata1.00: configured for UDMA/100 [ 87.946230][ T1027] ata1: EH complete Warning: Permanently added '[localhost]:18727' (ED25519) to the list of known hosts. 2026/04/27 06:32:02 parsed 1 programs [ 96.997643][ T37] cfg80211: failed to load regulatory.db [ 97.367079][ T5294] cgroup: Unknown subsys name 'net' [ 97.423334][ T5294] cgroup: Unknown subsys name 'cpuset' [ 97.431035][ T5294] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 99.111137][ T5294] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 103.532519][ T5308] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.542453][ T5308] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.546454][ T5308] bridge_slave_0: entered allmulticast mode [ 103.550226][ T5308] bridge_slave_0: entered promiscuous mode [ 103.557664][ T5308] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.560916][ T5308] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.564179][ T5308] bridge_slave_1: entered allmulticast mode [ 103.568469][ T5308] bridge_slave_1: entered promiscuous mode [ 103.593186][ T5308] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 103.600142][ T5308] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 103.621865][ T5308] team0: Port device team_slave_0 added [ 103.626935][ T5308] team0: Port device team_slave_1 added [ 103.650362][ T5308] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 103.653671][ T5308] 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. [ 103.665378][ T5308] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 103.673174][ T5308] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 103.676992][ T5308] 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. [ 103.690002][ T5308] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 103.736266][ T5308] hsr_slave_0: entered promiscuous mode [ 103.740387][ T5308] hsr_slave_1: entered promiscuous mode [ 103.915983][ T5308] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 103.929223][ T5308] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 103.934308][ T5308] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 103.943085][ T5308] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 103.948512][ T5308] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 103.954435][ T5308] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 103.961302][ T5308] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.972990][ T5308] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 104.005893][ T5308] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.009495][ T5308] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.013342][ T5308] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.016687][ T5308] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.088962][ T5308] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.109262][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.113565][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.127819][ T5308] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.140869][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.144470][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.159188][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.162524][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.540704][ T5308] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 104.611065][ T5308] veth0_vlan: entered promiscuous mode [ 104.622376][ T5308] veth1_vlan: entered promiscuous mode [ 104.660321][ T5308] veth0_macvtap: entered promiscuous mode [ 104.670845][ T5308] veth1_macvtap: entered promiscuous mode [ 104.693337][ T5308] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 104.710111][ T5308] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 104.729145][ T30] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.739036][ T30] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.751945][ T30] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.772029][ T30] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.908611][ T5308] 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. [ 105.408278][ T30] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.507726][ T30] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 106.078187][ T181] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.093337][ T181] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.132911][ T181] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.137551][ T181] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.330469][ T30] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 106.772384][ T45] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 106.779428][ T45] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 106.783810][ T45] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 106.787772][ T45] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 106.791225][ T45] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 107.444211][ T30] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.047092][ T30] bridge_slave_1: left allmulticast mode [ 108.066112][ T30] bridge_slave_1: left promiscuous mode [ 108.079373][ T30] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.159579][ T30] bridge_slave_0: left allmulticast mode [ 108.175462][ T30] bridge_slave_0: left promiscuous mode [ 108.195054][ T30] bridge0: port 1(bridge_slave_0) entered disabled state 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-build2621072527=/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 f7988ea4935e 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=f7988ea4935e2627f33bc73cf235f2c1942dce76 -X github.com/google/syzkaller/prog.gitRevisionDate=20251114-115537" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=f7988ea4935e2627f33bc73cf235f2c1942dce76 -X github.com/google/syzkaller/prog.gitRevisionDate=20251114-115537" ./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=f7988ea4935e2627f33bc73cf235f2c1942dce76 -X github.com/google/syzkaller/prog.gitRevisionDate=20251114-115537" -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=\"f7988ea4935e2627f33bc73cf235f2c1942dce76\" /usr/bin/ld: /tmp/ccFWadIE.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