lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x18e000) [ 80.939772][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 80.942656][ T1029] ata1: failed to read log page 10h (errno=-5) [ 80.945198][ T1029] ata1.00: exception Emask 0x1 SAct 0x1800 SErr 0x0 action 0x0 [ 80.963531][ T1029] ata1.00: irq_stat 0x41000000 [ 80.970862][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 80.975853][ T1029] ata1.00: cmd 61/70:58:36:81:04/0c:00:00:00:00/40 tag 11 ncq dma 1630208 ou [ 80.975853][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 80.993979][ T1029] ata1.00: status: { DRDY } [ 80.999309][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 81.006215][ T1029] ata1.00: cmd 61/68:60:a6:8d:04/08:00:00:00:00/40 tag 12 ncq dma 1101824 ou [ 81.006215][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 81.024294][ T1029] ata1.00: status: { DRDY } [ 81.031255][ T1029] ata1.00: configured for UDMA/100 [ 81.040120][ T1029] ata1: EH complete Warning: Permanently added '[localhost]:51075' (ED25519) to the list of known hosts. 2026/07/23 10:33:56 parsed 1 programs [ 90.031849][ T5299] cgroup: Unknown subsys name 'net' [ 90.106911][ T5299] cgroup: Unknown subsys name 'cpuset' [ 90.113937][ T5299] cgroup: Unknown subsys name 'rlimit' [ 91.640820][ T5299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.834252][ T1383] cfg80211: failed to load regulatory.db qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 93.970051][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 93.972956][ T1029] ata1: failed to read log page 10h (errno=-5) [ 93.975636][ T1029] ata1.00: exception Emask 0x1 SAct 0x600000 SErr 0x0 action 0x0 [ 94.010798][ T1029] ata1.00: irq_stat 0x41000000 [ 94.019903][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 94.029045][ T1029] ata1.00: cmd 61/00:a8:06:a2:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 94.029045][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 94.049593][ T1029] ata1.00: status: { DRDY } [ 94.051792][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 94.054728][ T1029] ata1.00: cmd 61/c0:b0:06:c2:05/06:00:00:00:00/40 tag 22 ncq dma 884736 out [ 94.054728][ T1029] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 94.078935][ T1029] ata1.00: status: { DRDY } [ 94.083003][ T1029] ata1.00: configured for UDMA/100 [ 94.094333][ T1029] ata1: EH complete [ 98.576390][ T5321] 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. [ 101.043871][ T44] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 101.054998][ T44] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 101.061322][ T44] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 101.069983][ T44] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 101.076221][ T44] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 103.179763][ T4653] Bluetooth: hci0: command tx timeout [ 105.259192][ T4653] Bluetooth: hci0: command tx timeout [ 105.919351][ T155] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.960103][ T155] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.900252][ T5322] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.935373][ T5322] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.961653][ T5322] bridge_slave_0: entered allmulticast mode [ 107.003008][ T5322] bridge_slave_0: entered promiscuous mode [ 107.570002][ T5322] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.583966][ T5322] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.588211][ T5322] bridge_slave_1: entered allmulticast mode [ 107.603419][ T5322] bridge_slave_1: entered promiscuous mode [ 107.787909][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.799125][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.925657][ T5322] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 107.952085][ T5322] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 108.292301][ T5322] team0: Port device team_slave_0 added [ 108.319139][ T5322] team0: Port device team_slave_1 added [ 108.716889][ T5322] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 108.734451][ T5322] 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. [ 108.785698][ T5322] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 108.906549][ T5322] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 108.926139][ T5322] 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. [ 108.996636][ T5322] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 109.261054][ T5322] hsr_slave_0: entered promiscuous mode [ 109.287024][ T5322] hsr_slave_1: entered promiscuous mode qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x397000) [ 109.719705][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 109.731465][ T1029] ata1: failed to read log page 10h (errno=-5) [ 109.743668][ T1029] ata1.00: NCQ disabled due to excessive errors [ 109.752776][ T1029] ata1.00: exception Emask 0x1 SAct 0x1000000 SErr 0x0 action 0x0 [ 109.763803][ T1029] ata1.00: irq_stat 0x41000008 [ 109.771471][ T1029] ata1.00: failed command: READ FPDMA QUEUED [ 109.782147][ T1029] ata1.00: cmd 60/b8:c0:6e:07:05/1c:00:00:00:00/40 tag 24 ncq dma 3764224 in [ 109.782147][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 109.806309][ T1029] ata1.00: status: { DRDY } [ 109.814309][ T1029] ata1.00: error: { ABRT } [ 109.824776][ T1029] ata1.00: configured for UDMA/100 [ 109.841709][ T1029] sd 0:0:0:0: [sda] tag#24 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 109.855313][ T1029] sd 0:0:0:0: [sda] tag#24 Sense Key : Aborted Command [current] [ 109.871564][ T1029] sd 0:0:0:0: [sda] tag#24 Add. Sense: No additional sense information [ 109.880513][ T1029] sd 0:0:0:0: [sda] tag#24 CDB: Read(10) 28 00 00 05 07 6e 00 1c b8 00 [ 109.891252][ T1029] I/O error, dev sda, sector 329582 op 0x0:(READ) flags 0x80700 phys_seg 145 prio class 2 [ 109.912966][ T1029] ata1: EH complete [ 110.138244][ T5322] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 110.203965][ T5322] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 110.224755][ T5322] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 110.261519][ T5322] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 110.269475][ T5322] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 110.295318][ T5322] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 110.316519][ T5322] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 110.343265][ T5322] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 110.551508][ T5322] 8021q: adding VLAN 0 to HW filter on device bond0 [ 110.600734][ T5322] 8021q: adding VLAN 0 to HW filter on device team0 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-build3349808588=/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 67cf53451a 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=67cf53451a9e04583ca8397b8a2eba399e4fae22 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250228-133555'" -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=\"67cf53451a9e04583ca8397b8a2eba399e4fae22\" /usr/bin/ld: /tmp/ccVL3vdf.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