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)
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
Warning: Permanently added '[localhost]:30561' (ED25519) to the list of known hosts.
2026/05/22 20:40:34 parsed 1 programs
[   96.022223][ T5298] cgroup: Unknown subsys name 'net'
[   96.075974][ T5298] cgroup: Unknown subsys name 'cpuset'
[   96.083800][ T5298] cgroup: Unknown subsys name 'rlimit'
[   96.965049][    T9] cfg80211: failed to load regulatory.db
[  143.046252][ T1330] ieee802154 phy0 wpan0: encryption failed: -22
[  143.049324][ T1330] ieee802154 phy1 wpan1: encryption failed: -22
[  151.381406][ T1026] ata1.00: NCQ disabled due to excessive errors
[  151.384315][ T1026] ata1.00: exception Emask 0x0 SAct 0x120 SErr 0x0 action 0x6 frozen
[  151.387737][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED
[  151.390521][ T1026] ata1.00: cmd 61/00:28:36:01:05/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou
[  151.390521][ T1026]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  151.398401][ T1026] ata1.00: status: { DRDY }
[  151.401097][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED
[  151.403870][ T1026] ata1.00: cmd 61/00:40:36:61:05/20:00:00:00:00/40 tag 8 ncq dma 4194304 ou
[  151.403870][ T1026]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  151.411856][ T1026] ata1.00: status: { DRDY }
[  151.415795][ T1026] ata1: hard resetting link
[  151.732569][ T1026] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[  151.736670][ T1026] ata1.00: configured for UDMA/100
[  151.739425][ T1026] ata1: EH complete
[  153.387075][ T5298] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k 
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=<nil>)
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-build2435401675=/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=<nil>)
HEAD detached at ff1712fe925b
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=ff1712fe925b6acf5dec3cd7616cf03effc97f62 -X github.com/google/syzkaller/prog.gitRevisionDate=20251009-223438"  ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=ff1712fe925b6acf5dec3cd7616cf03effc97f62 -X github.com/google/syzkaller/prog.gitRevisionDate=20251009-223438"  ./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=ff1712fe925b6acf5dec3cd7616cf03effc97f62 -X github.com/google/syzkaller/prog.gitRevisionDate=20251009-223438"  -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=\"ff1712fe925b6acf5dec3cd7616cf03effc97f62\"
/usr/bin/ld: /tmp/ccuZOovN.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