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) [ 90.047533][ T1011] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 90.050836][ T1011] ata1: failed to read log page 10h (errno=-5) [ 90.070083][ T1011] ata1.00: exception Emask 0x1 SAct 0x600000 SErr 0x0 action 0x0 [ 90.078146][ T1011] ata1.00: irq_stat 0x41000000 [ 90.080784][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 90.091427][ T1011] ata1.00: cmd 61/00:a8:36:99:04/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 90.091427][ T1011] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 90.113607][ T1011] ata1.00: status: { DRDY } [ 90.115845][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 90.118706][ T1011] ata1.00: cmd 61/00:b0:36:b9:04/08:00:00:00:00/40 tag 22 ncq dma 1048576 ou [ 90.118706][ T1011] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 90.143881][ T1011] ata1.00: status: { DRDY } [ 90.153867][ T1011] ata1.00: configured for UDMA/100 [ 90.172190][ T1011] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xa8000) qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 93.533928][ T1011] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 93.537233][ T1011] ata1: failed to read log page 10h (errno=-5) [ 93.540122][ T1011] ata1.00: NCQ disabled due to excessive errors [ 93.545696][ T1011] ata1.00: exception Emask 0x1 SAct 0x4380 SErr 0x0 action 0x0 [ 93.550139][ T1011] ata1.00: irq_stat 0x41000000 [ 93.552520][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.555536][ T1011] ata1.00: cmd 61/00:38:36:a1:05/20:00:00:00:00/40 tag 7 ncq dma 4194304 ou [ 93.555536][ T1011] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.563717][ T1011] ata1.00: status: { DRDY } [ 93.566454][ T1011] ata1.00: error: { ABRT } [ 93.569004][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.572047][ T1011] ata1.00: cmd 61/00:40:36:c1:05/20:00:00:00:00/40 tag 8 ncq dma 4194304 ou [ 93.572047][ T1011] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.580277][ T1011] ata1.00: status: { DRDY } [ 93.583121][ T1011] ata1.00: error: { ABRT } [ 93.585548][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.588372][ T1011] ata1.00: cmd 61/f0:48:36:e1:05/08:00:00:00:00/40 tag 9 ncq dma 1171456 ou [ 93.588372][ T1011] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.596310][ T1011] ata1.00: status: { DRDY } [ 93.598722][ T1011] ata1.00: error: { ABRT } [ 93.601548][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.605211][ T1011] ata1.00: cmd 61/40:70:76:5b:05/05:00:00:00:00/40 tag 14 ncq dma 688128 out [ 93.605211][ T1011] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.612864][ T1011] ata1.00: status: { DRDY } [ 93.615057][ T1011] ata1.00: error: { ABRT } [ 93.618507][ T1011] ata1.00: configured for UDMA/100 [ 93.622168][ T1011] ata1: EH complete Warning: Permanently added '[localhost]:2993' (ED25519) to the list of known hosts. [ 97.284931][ T1240] cfg80211: failed to load regulatory.db 2026/03/28 03:42:24 parsed 1 programs [ 101.942386][ T5308] cgroup: Unknown subsys name 'net' [ 101.998669][ T5308] cgroup: Unknown subsys name 'cpuset' [ 102.005751][ T5308] cgroup: Unknown subsys name 'rlimit' [ 103.943171][ T5308] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 110.174289][ T5339] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 110.179198][ T5339] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 110.197826][ T5339] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 110.202383][ T5339] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 110.206653][ T5339] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 110.965333][ T5337] 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. [ 111.154169][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.157842][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.476563][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.523127][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 112.325352][ T5339] Bluetooth: hci0: command tx timeout [ 129.368797][ T5378] chnl_net:caif_netlink_parms(): no params data found [ 137.611735][ T5378] bridge0: port 1(bridge_slave_0) entered blocking state [ 137.639668][ T5378] bridge0: port 1(bridge_slave_0) entered disabled state [ 137.674732][ T5378] bridge_slave_0: entered allmulticast mode [ 137.698692][ T5378] bridge_slave_0: entered promiscuous mode [ 137.741974][ T5378] bridge0: port 2(bridge_slave_1) entered blocking state [ 137.773899][ T5378] bridge0: port 2(bridge_slave_1) entered disabled state [ 137.777792][ T5378] bridge_slave_1: entered allmulticast mode [ 137.812808][ T5378] bridge_slave_1: entered promiscuous mode [ 138.018700][ T5378] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 138.110692][ T5378] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 138.429071][ T5378] team0: Port device team_slave_0 added [ 138.468617][ T5378] team0: Port device team_slave_1 added [ 139.118425][ T5378] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 139.121790][ T5378] 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. [ 139.172311][ T5378] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 139.249194][ T5378] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 139.268100][ T5378] 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. [ 139.331341][ T5378] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active 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-build830672023=/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 a0626d3a05d5 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 go fmt ./sys/... >/dev/null touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=a0626d3a05d5e31af100787b6749f0b89416c171 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241217-143115'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"a0626d3a05d5e31af100787b6749f0b89416c171\" /usr/bin/ld: /tmp/ccqGge82.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