lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x22f000) [ 78.371382][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 78.379654][ T1027] ata1: failed to read log page 10h (errno=-5) [ 78.382297][ T1027] ata1.00: exception Emask 0x1 SAct 0x18000000 SErr 0x0 action 0x0 [ 78.385652][ T1027] ata1.00: irq_stat 0x41000000 [ 78.387797][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 78.399217][ T1027] ata1.00: cmd 61/78:d8:36:41:05/11:00:00:00:00/40 tag 27 ncq dma 2289664 ou [ 78.399217][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 78.417503][ T1027] ata1.00: status: { DRDY } [ 78.420381][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 78.425082][ T1027] ata1.00: cmd 61/b8:e0:ae:52:05/03:00:00:00:00/40 tag 28 ncq dma 487424 out [ 78.425082][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 78.444586][ T1027] ata1.00: status: { DRDY } [ 78.448202][ T1027] ata1.00: configured for UDMA/100 [ 78.460413][ T1027] ata1: EH complete Warning: Permanently added '[localhost]:46055' (ED25519) to the list of known hosts. 2026/08/10 18:01:09 parsed 1 programs 2026/08/10 18:01:09 serving rpc on tcp://44239 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) [ 83.479933][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 83.482399][ T1027] ata1: failed to read log page 10h (errno=-5) [ 83.486376][ T1027] ata1.00: exception Emask 0x1 SAct 0x40000060 SErr 0x0 action 0x0 [ 83.497619][ T1027] ata1.00: irq_stat 0x41000000 [ 83.506230][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 83.519151][ T1027] ata1.00: cmd 61/00:28:36:c1:05/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 83.519151][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 83.539931][ T1027] ata1.00: status: { DRDY } [ 83.544366][ T1027] ata1.00: error: { ABRT } [ 83.546237][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 83.559308][ T1027] ata1.00: cmd 61/00:30:36:e1:05/20:00:00:00:00/40 tag 6 ncq dma 4194304 ou [ 83.559308][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 83.578929][ T1027] ata1.00: status: { DRDY } [ 83.581096][ T1027] ata1.00: error: { ABRT } [ 83.582732][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 83.585071][ T1027] ata1.00: cmd 61/40:f0:36:8a:05/05:00:00:00:00/40 tag 30 ncq dma 688128 out [ 83.585071][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 83.608868][ T1027] ata1.00: status: { DRDY } [ 83.610987][ T1027] ata1.00: error: { ABRT } [ 83.613979][ T1027] ata1.00: configured for UDMA/100 [ 83.617514][ T1027] ata1: EH complete [ 83.669343][ T5295] cgroup: Unknown subsys name 'net' [ 83.765257][ T5295] cgroup: Unknown subsys name 'cpuset' [ 83.778625][ T5295] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 85.809253][ T5295] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 90.849053][ T5319] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 90.854112][ T5319] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 90.859338][ T5319] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 90.870768][ T5319] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 90.875704][ T5319] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 91.744179][ T52] cfg80211: failed to load regulatory.db [ 92.013322][ T5314] 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. [ 92.386384][ T41] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 92.431248][ T41] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.920363][ T5319] Bluetooth: hci0: command tx timeout [ 93.693699][ T1060] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.701672][ T1060] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.988903][ T5319] Bluetooth: hci0: command tx timeout qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x10d000) [ 95.563545][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 95.589390][ T1027] ata1: failed to read log page 10h (errno=-5) [ 95.610448][ T1027] ata1.00: NCQ disabled due to excessive errors [ 95.631204][ T1027] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 95.656993][ T1027] ata1.00: irq_stat 0x41000000 [ 95.671475][ T1027] ata1.00: failed command: READ FPDMA QUEUED [ 95.690273][ T1027] ata1.00: cmd 60/68:70:86:9c:05/08:00:00:00:00/40 tag 14 ncq dma 1101824 in [ 95.690273][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.744364][ T1027] ata1.00: status: { DRDY } [ 95.761125][ T1027] ata1.00: error: { ABRT } [ 95.781043][ T1027] ata1.00: configured for UDMA/100 [ 95.798375][ T1027] sd 0:0:0:0: [sda] tag#14 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 95.834420][ T1027] sd 0:0:0:0: [sda] tag#14 Sense Key : Aborted Command [current] [ 95.857857][ T1027] sd 0:0:0:0: [sda] tag#14 Add. Sense: No additional sense information [ 95.882483][ T1027] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 00 05 9c 86 00 08 68 00 [ 95.904333][ T1027] I/O error, dev sda, sector 367750 op 0x0:(READ) flags 0x80700 phys_seg 59 prio class 2 [ 95.927718][ T1027] ata1: EH complete 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-build2416748451=/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 3c5eaa21b0 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=3c5eaa21b0dde97af48b7218aaad155b57ae3941 -X github.com/google/syzkaller/prog.gitRevisionDate=20260804-095432" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=3c5eaa21b0dde97af48b7218aaad155b57ae3941 -X github.com/google/syzkaller/prog.gitRevisionDate=20260804-095432" ./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=3c5eaa21b0dde97af48b7218aaad155b57ae3941 -X github.com/google/syzkaller/prog.gitRevisionDate=20260804-095432" -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=\"3c5eaa21b0dde97af48b7218aaad155b57ae3941\" /usr/bin/ld: /tmp/ccIA8OL8.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