lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xa5000) [ 89.937439][ T1010] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 89.940948][ T1010] ata1: failed to read log page 10h (errno=-5) [ 89.943789][ T1010] ata1.00: exception Emask 0x1 SAct 0xc000 SErr 0x0 action 0x0 [ 89.981655][ T1010] ata1.00: irq_stat 0x41000000 [ 89.983775][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED [ 89.986943][ T1010] ata1.00: cmd 61/28:70:0e:7c:04/05:00:00:00:00/40 tag 14 ncq dma 675840 out [ 89.986943][ T1010] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 90.007008][ T1010] ata1.00: status: { DRDY } [ 90.009649][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED [ 90.013538][ T1010] ata1.00: cmd 61/58:78:36:81:04/0e:00:00:00:00/40 tag 15 ncq dma 1880064 ou [ 90.013538][ T1010] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 90.047765][ T1010] ata1.00: status: { DRDY } [ 90.057881][ T1010] ata1.00: configured for UDMA/100 [ 90.075877][ T1010] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xfe000) [ 90.126086][ T1010] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 90.129440][ T1010] ata1: failed to read log page 10h (errno=-5) [ 90.132708][ T1010] ata1.00: exception Emask 0x1 SAct 0xc000 SErr 0x0 action 0x0 [ 90.155756][ T1010] ata1.00: irq_stat 0x40000000 [ 90.158274][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED [ 90.161552][ T1010] ata1.00: cmd 61/f0:70:ce:9b:04/07:00:00:00:00/40 tag 14 ncq dma 1040384 ou [ 90.161552][ T1010] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 90.207679][ T1010] ata1.00: status: { DRDY } [ 90.209998][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED [ 90.212756][ T1010] ata1.00: cmd 61/78:78:be:a3:04/1d:00:00:00:00/40 tag 15 ncq dma 3862528 ou [ 90.212756][ T1010] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 90.255603][ T1010] ata1.00: status: { DRDY } [ 90.271051][ T1010] ata1.00: configured for UDMA/100 [ 90.292900][ T1010] ata1: EH complete Warning: Permanently added '[localhost]:4823' (ED25519) to the list of known hosts. [ 97.287587][ T10] cfg80211: failed to load regulatory.db 2026/04/09 00:10:16 parsed 1 programs [ 100.415993][ T5313] cgroup: Unknown subsys name 'net' [ 100.493811][ T5313] cgroup: Unknown subsys name 'cpuset' [ 100.501107][ T5313] cgroup: Unknown subsys name 'rlimit' [ 102.367087][ T5313] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 109.134405][ T5340] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 109.148997][ T5340] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 109.153027][ T5340] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 109.157030][ T5340] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 109.161620][ T5340] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 110.413832][ T5336] 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. [ 110.629956][ T1056] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 110.633757][ T1056] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.117523][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.135223][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.198202][ T5340] Bluetooth: hci0: command tx timeout [ 129.969657][ T5373] chnl_net:caif_netlink_parms(): no params data found [ 136.147960][ T5373] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.172849][ T5373] bridge0: port 1(bridge_slave_0) entered disabled state [ 136.179212][ T5373] bridge_slave_0: entered allmulticast mode [ 136.207701][ T5373] bridge_slave_0: entered promiscuous mode [ 136.239844][ T5373] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.243749][ T5373] bridge0: port 2(bridge_slave_1) entered disabled state [ 136.255656][ T5373] bridge_slave_1: entered allmulticast mode [ 136.265620][ T5373] bridge_slave_1: entered promiscuous mode [ 136.669963][ T5373] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 136.710784][ T5373] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 137.479794][ T5373] team0: Port device team_slave_0 added [ 137.499436][ T5373] team0: Port device team_slave_1 added [ 138.058793][ T5373] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 138.062789][ T5373] 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. [ 138.124864][ T5373] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 138.454187][ T5373] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 138.464528][ T5373] 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. [ 138.495930][ T5373] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 138.987747][ T5373] hsr_slave_0: entered promiscuous mode [ 139.014927][ T5373] hsr_slave_1: entered promiscuous mode qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x219000) [ 139.449440][ T1010] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 139.452768][ T1010] ata1: failed to read log page 10h (errno=-5) [ 139.476434][ T1010] ata1.00: NCQ disabled due to excessive errors [ 139.489868][ T1010] ata1.00: exception Emask 0x1 SAct 0x1800 SErr 0x0 action 0x0 [ 139.493476][ T1010] ata1.00: irq_stat 0x41000000 [ 139.520515][ T1010] ata1.00: failed command: READ FPDMA QUEUED [ 139.523308][ T1010] ata1.00: cmd 60/c8:58:36:32:05/10:00:00:00:00/40 tag 11 ncq dma 2199552 in [ 139.523308][ T1010] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 139.564902][ T1010] ata1.00: status: { DRDY } [ 139.567266][ T1010] ata1.00: error: { ABRT } [ 139.583490][ T1010] ata1.00: failed command: READ FPDMA QUEUED [ 139.601635][ T1010] ata1.00: cmd 60/38:60:fe:42:05/02:00:00:00:00/40 tag 12 ncq dma 290816 in [ 139.601635][ T1010] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 139.633380][ T1010] ata1.00: status: { DRDY } [ 139.645000][ T1010] ata1.00: error: { ABRT } [ 139.653291][ T1010] ata1.00: configured for UDMA/100 [ 139.666732][ T1010] sd 0:0:0:0: [sda] tag#11 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 139.696111][ T1010] sd 0:0:0:0: [sda] tag#11 Sense Key : Aborted Command [current] [ 139.700210][ T1010] sd 0:0:0:0: [sda] tag#11 Add. Sense: No additional sense information [ 139.704309][ T1010] sd 0:0:0:0: [sda] tag#11 CDB: Read(10) 28 00 00 05 32 36 00 10 c8 00 [ 139.725076][ T1010] I/O error, dev sda, sector 340534 op 0x0:(READ) flags 0x84700 phys_seg 168 prio class 2 [ 139.748617][ T1010] sd 0:0:0:0: [sda] tag#12 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 139.753965][ T1010] sd 0:0:0:0: [sda] tag#12 Sense Key : Aborted Command [current] [ 139.774925][ T1010] sd 0:0:0:0: [sda] tag#12 Add. Sense: No additional sense information [ 139.786256][ T1010] sd 0:0:0:0: [sda] tag#12 CDB: Read(10) 28 00 00 05 42 fe 00 02 38 00 [ 139.794003][ T5373] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 139.805209][ T1010] I/O error, dev sda, sector 344830 op 0x0:(READ) flags 0x80700 phys_seg 20 prio class 2 [ 139.818715][ T1010] ata1: EH complete [ 139.856063][ T5373] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 139.871642][ T5373] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 139.888726][ T5373] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 140.066936][ T5373] 8021q: adding VLAN 0 to HW filter on device bond0 [ 140.124501][ T5373] 8021q: adding VLAN 0 to HW filter on device team0 [ 140.152795][ T1040] bridge0: port 1(bridge_slave_0) entered blocking state [ 140.156395][ T1040] bridge0: port 1(bridge_slave_0) entered forwarding state [ 140.182840][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 140.186490][ T13] bridge0: port 2(bridge_slave_1) entered forwarding 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-build1057548095=/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 350f4ffc2119 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=350f4ffc211908fed1507b105460d0ce8400ea65 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250506-141626'" -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=\"350f4ffc211908fed1507b105460d0ce8400ea65\" /usr/bin/ld: /tmp/ccNmHWeG.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