lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x300000) [ 118.375027][ T1025] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 118.375138][ T1025] ata1: failed to read log page 10h (errno=-5) [ 118.375150][ T1025] ata1.00: exception Emask 0x1 SAct 0x1800 SErr 0x0 action 0x0 [ 118.375161][ T1025] ata1.00: irq_stat 0x41000000 [ 118.375171][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 118.375178][ T1025] ata1.00: cmd 61/00:58:36:a9:04/18:00:00:00:00/40 tag 11 ncq dma 3145728 ou [ 118.375178][ T1025] res 50/00:01:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 118.375211][ T1025] ata1.00: status: { DRDY } [ 118.375220][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 118.375226][ T1025] ata1.00: cmd 61/00:60:36:c1:04/20:00:00:00:00/40 tag 12 ncq dma 4194304 ou [ 118.375226][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 118.375257][ T1025] ata1.00: status: { DRDY } [ 118.378343][ T1025] ata1.00: configured for UDMA/100 [ 118.379338][ T1025] ata1: EH complete Warning: Permanently added '[localhost]:57619' (ED25519) to the list of known hosts. 2026/10/06 19:25:04 parsed 1 programs 2026/10/06 19:25:04 serving rpc on tcp://39599 [ 127.693290][ T5290] cgroup: Unknown subsys name 'net' [ 127.749833][ T5290] cgroup: Unknown subsys name 'cpuset' [ 127.753360][ T5290] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 129.389777][ T5290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xc2000) [ 134.152952][ T1025] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 134.153057][ T1025] ata1: failed to read log page 10h (errno=-5) [ 134.153068][ T1025] ata1.00: NCQ disabled due to excessive errors [ 134.153076][ T1025] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 134.153087][ T1025] ata1.00: irq_stat 0x41000008 [ 134.153098][ T1025] ata1.00: failed command: READ FPDMA QUEUED [ 134.153105][ T1025] ata1.00: cmd 60/10:70:b6:d6:05/06:00:00:00:00/40 tag 14 ncq dma 794624 in [ 134.153105][ T1025] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 134.153136][ T1025] ata1.00: status: { DRDY } [ 134.153143][ T1025] ata1.00: error: { ABRT } [ 134.154398][ T1025] ata1.00: configured for UDMA/100 [ 134.154799][ T1025] sd 0:0:0:0: [sda] tag#14 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 134.154832][ T1025] sd 0:0:0:0: [sda] tag#14 Sense Key : Aborted Command [current] [ 134.154860][ T1025] sd 0:0:0:0: [sda] tag#14 Add. Sense: No additional sense information [ 134.154887][ T1025] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 00 05 d6 b6 00 06 10 00 [ 134.154903][ T1025] I/O error, dev sda, sector 382646 op 0x0:(READ) flags 0x84700 phys_seg 168 prio class 2 [ 134.184055][ T1025] ata1: EH complete [ 136.677141][ T5312] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 136.698366][ T90] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.704059][ T90] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.916699][ T90] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.916712][ T90] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 138.140624][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 138.140678][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 139.031804][ T5350] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 139.046470][ T5350] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 139.051633][ T5350] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 139.065591][ T5350] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 139.066336][ T5350] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 141.068430][ T5316] bridge0: port 1(bridge_slave_0) entered blocking state [ 141.068505][ T5316] bridge0: port 1(bridge_slave_0) entered disabled state [ 141.068641][ T5316] bridge_slave_0: entered allmulticast mode [ 141.099191][ T5316] bridge_slave_0: entered promiscuous mode [ 141.174870][ T4645] Bluetooth: hci0: command tx timeout [ 141.268587][ T5316] bridge0: port 2(bridge_slave_1) entered blocking state [ 141.268658][ T5316] bridge0: port 2(bridge_slave_1) entered disabled state [ 141.268794][ T5316] bridge_slave_1: entered allmulticast mode [ 141.288703][ T5316] bridge_slave_1: entered promiscuous mode [ 142.206315][ T5316] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 142.562697][ T5316] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 143.742588][ T5316] team0: Port device team_slave_0 added [ 143.766101][ T5316] team0: Port device team_slave_1 added [ 144.297938][ T5316] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 144.298043][ T5316] 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. [ 144.298059][ T5316] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 144.354168][ T5316] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 144.354184][ T5316] 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. [ 144.354201][ T5316] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 144.589152][ T5316] hsr_slave_0: entered promiscuous mode [ 144.592288][ T5316] hsr_slave_1: entered promiscuous mode 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-build2604098799=/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 43bfcdb07c3 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=43bfcdb07c3552e4664e1029672054ac0924d543 -X github.com/google/syzkaller/prog.gitRevisionDate=20260619-141952" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=43bfcdb07c3552e4664e1029672054ac0924d543 -X github.com/google/syzkaller/prog.gitRevisionDate=20260619-141952" ./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=43bfcdb07c3552e4664e1029672054ac0924d543 -X github.com/google/syzkaller/prog.gitRevisionDate=20260619-141952" -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=\"43bfcdb07c3552e4664e1029672054ac0924d543\" /usr/bin/ld: /tmp/ccaRhKCg.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