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) [ 87.858777][ T1025] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 87.858852][ T1025] ata1: failed to read log page 10h (errno=-5) [ 87.858896][ T1025] ata1.00: exception Emask 0x1 SAct 0x60 SErr 0x0 action 0x0 [ 87.858928][ T1025] ata1.00: irq_stat 0x41000000 [ 87.858961][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.858988][ T1025] ata1.00: cmd 61/00:28:36:81:04/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 87.858988][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.859039][ T1025] ata1.00: status: { DRDY } [ 87.859069][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.859095][ T1025] ata1.00: cmd 61/00:30:36:a1:04/20:00:00:00:00/40 tag 6 ncq dma 4194304 ou [ 87.859095][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.859150][ T1025] ata1.00: status: { DRDY } [ 87.863265][ T1025] ata1.00: configured for UDMA/100 [ 87.902062][ T1025] ata1: EH complete Warning: Permanently added '[localhost]:16813' (ED25519) to the list of known hosts. [ 91.933503][ T10] cfg80211: failed to load regulatory.db 2026/09/01 17:19:18 parsed 1 programs [ 97.198186][ T5296] cgroup: Unknown subsys name 'net' [ 97.274635][ T5296] cgroup: Unknown subsys name 'cpuset' [ 97.281359][ T5296] cgroup: Unknown subsys name 'rlimit' [ 98.866097][ T5296] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 104.963619][ T5324] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.970629][ T5324] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.980692][ T5324] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.985309][ T5324] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.989083][ T5324] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x1a8000) [ 106.779860][ T5317] 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. [ 106.987128][ T43] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.996597][ T43] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.048989][ T5324] Bluetooth: hci0: command tx timeout [ 107.254929][ T1061] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.254981][ T1061] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 110.406222][ T5318] bridge0: port 1(bridge_slave_0) entered blocking state [ 110.406339][ T5318] bridge0: port 1(bridge_slave_0) entered disabled state [ 110.406486][ T5318] bridge_slave_0: entered allmulticast mode [ 110.421553][ T5318] bridge_slave_0: entered promiscuous mode [ 110.442174][ T5318] bridge0: port 2(bridge_slave_1) entered blocking state [ 110.445615][ T5318] bridge0: port 2(bridge_slave_1) entered disabled state [ 110.449388][ T5318] bridge_slave_1: entered allmulticast mode [ 110.455687][ T5318] bridge_slave_1: entered promiscuous mode [ 110.518714][ T1025] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 110.518763][ T1025] ata1: failed to read log page 10h (errno=-5) [ 110.518802][ T1025] ata1.00: NCQ disabled due to excessive errors [ 110.518830][ T1025] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 110.518861][ T1025] ata1.00: irq_stat 0x41000008 [ 110.518889][ T1025] ata1.00: failed command: READ FPDMA QUEUED [ 110.518916][ T1025] ata1.00: cmd 60/40:70:b6:94:05/0d:00:00:00:00/40 tag 14 ncq dma 1736704 in [ 110.518916][ T1025] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 110.518967][ T1025] ata1.00: status: { DRDY } [ 110.518994][ T1025] ata1.00: error: { ABRT } [ 110.555857][ T1025] ata1.00: configured for UDMA/100 [ 110.556363][ T1025] sd 0:0:0:0: [sda] tag#14 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=4s [ 110.556427][ T1025] sd 0:0:0:0: [sda] tag#14 Sense Key : Aborted Command [current] [ 110.556471][ T1025] sd 0:0:0:0: [sda] tag#14 Add. Sense: No additional sense information [ 110.556516][ T1025] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 00 05 94 b6 00 0d 40 00 [ 110.576200][ T1025] I/O error, dev sda, sector 365750 op 0x0:(READ) flags 0x80700 phys_seg 52 prio class 2 [ 110.576453][ T1025] ata1: EH complete [ 110.843510][ T5318] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 110.873776][ T5318] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.385193][ T5318] team0: Port device team_slave_0 added [ 111.514631][ T5318] team0: Port device team_slave_1 added [ 112.719215][ T5318] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 112.725603][ T5318] 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. [ 112.742768][ T5318] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 112.764740][ T5318] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 112.769857][ T5318] 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. [ 112.784149][ T5318] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 113.369800][ T5318] hsr_slave_0: entered promiscuous mode [ 113.377920][ T5318] hsr_slave_1: entered promiscuous mode [ 124.650202][ T5318] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 124.717627][ T5318] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 124.734626][ T5318] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 124.774048][ T5318] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 124.783455][ T5318] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 126.907926][ T5318] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 126.929655][ T5318] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 127.243289][ T5318] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 128.638323][ T5318] 8021q: adding VLAN 0 to HW filter on device bond0 [ 128.806063][ T5318] 8021q: adding VLAN 0 to HW filter on device team0 [ 128.847802][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 128.848008][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 128.981796][ T14] bridge0: port 2(bridge_slave_1) entered blocking state [ 128.981927][ T14] bridge0: port 2(bridge_slave_1) entered forwarding state [ 134.960922][ T5318] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 135.192568][ T5318] veth0_vlan: entered promiscuous mode [ 135.250244][ T5318] veth1_vlan: entered promiscuous mode [ 135.369554][ T5318] veth0_macvtap: entered promiscuous mode [ 135.389398][ T5318] veth1_macvtap: entered promiscuous mode [ 135.492525][ T5318] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 135.540019][ T5318] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 135.620558][ T43] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.669845][ T1061] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.669914][ T1061] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.680164][ T1061] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 138.011983][ T1336] ieee802154 phy0 wpan0: encryption failed: -22 [ 138.012099][ T1336] ieee802154 phy1 wpan1: encryption failed: -22 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-build833215650=/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 8f267cefd3 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=8f267cefd3660f9d5640ebbbd42e295a61774469 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250203-160945'" -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=\"8f267cefd3660f9d5640ebbbd42e295a61774469\" /usr/bin/ld: /tmp/ccbRPGb8.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