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)
Warning: Permanently added '[localhost]:65200' (ED25519) to the list of known hosts.
[   97.178230][  T804] cfg80211: failed to load regulatory.db
2026/07/12 00:19:38 parsed 1 programs
2026/07/12 00:19:38 serving rpc on tcp://37315
[  101.276153][ T5295] cgroup: Unknown subsys name 'net'
[  101.327504][ T5295] cgroup: Unknown subsys name 'cpuset'
[  101.336403][ T5295] cgroup: Unknown subsys name 'rlimit'
[  143.246829][ T1333] ieee802154 phy0 wpan0: encryption failed: -22
[  143.250257][ T1333] ieee802154 phy1 wpan1: encryption failed: -22
[  154.783171][ T1030] ata1.00: exception Emask 0x0 SAct 0x200000 SErr 0x0 action 0x6 frozen
[  154.786712][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  154.789712][ T1030] ata1.00: cmd 61/00:a8:36:81:04/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou
[  154.789712][ T1030]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  154.798150][ T1030] ata1.00: status: { DRDY }
[  154.800986][ T1030] ata1: hard resetting link
[  155.124343][ T1030] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[  155.130781][ T1030] ata1.00: configured for UDMA/100
[  155.134214][ T1030] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[  155.183972][ T1030] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1
[  155.187129][ T1030] ata1: failed to read log page 10h (errno=-5)
[  155.190191][ T1030] ata1.00: exception Emask 0x1 SAct 0xffa0 SErr 0x0 action 0x0
[  155.206065][ T1030] ata1.00: irq_stat 0x41000000
[  155.213044][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.223208][ T1030] ata1.00: cmd 61/08:28:7e:04:10/00:00:00:00:00/40 tag 5 ncq dma 4096 out
[  155.223208][ T1030]          res 50/00:01:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.244073][ T1030] ata1.00: status: { DRDY }
[  155.246279][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.248939][ T1030] ata1.00: cmd 61/00:38:36:01:05/20:00:00:00:00/40 tag 7 ncq dma 4194304 ou
[  155.248939][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.259874][ T1030] ata1.00: status: { DRDY }
[  155.261872][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.264633][ T1030] ata1.00: cmd 61/08:40:36:21:05/0c:00:00:00:00/40 tag 8 ncq dma 1576960 ou
[  155.264633][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.272027][ T1030] ata1.00: status: { DRDY }
[  155.276216][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.279304][ T1030] ata1.00: cmd 61/60:48:3e:2d:05/03:00:00:00:00/40 tag 9 ncq dma 442368 out
[  155.279304][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.287225][ T1030] ata1.00: status: { DRDY }
[  155.289393][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.292616][ T1030] ata1.00: cmd 61/68:50:9e:30:05/05:00:00:00:00/40 tag 10 ncq dma 708608 out
[  155.292616][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.301708][ T1030] ata1.00: status: { DRDY }
[  155.304166][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.306975][ T1030] ata1.00: cmd 61/10:58:06:36:05/03:00:00:00:00/40 tag 11 ncq dma 401408 out
[  155.306975][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.315031][ T1030] ata1.00: status: { DRDY }
[  155.317518][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.320936][ T1030] ata1.00: cmd 61/80:60:16:39:05/05:00:00:00:00/40 tag 12 ncq dma 720896 out
[  155.320936][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.330064][ T1030] ata1.00: status: { DRDY }
[  155.332160][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.335251][ T1030] ata1.00: cmd 61/a0:68:96:3e:05/02:00:00:00:00/40 tag 13 ncq dma 344064 out
[  155.335251][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.344281][ T1030] ata1.00: status: { DRDY }
[  155.346437][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.349031][ T1030] ata1.00: cmd 61/00:70:36:41:05/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou
[  155.349031][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.358097][ T1030] ata1.00: status: { DRDY }
[  155.360796][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  155.364131][ T1030] ata1.00: cmd 61/60:78:36:61:05/05:00:00:00:00/40 tag 15 ncq dma 704512 out
[  155.364131][ T1030]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  155.371739][ T1030] ata1.00: status: { DRDY }
[  155.375623][ T1030] ata1.00: configured for UDMA/100
[  155.379058][ T1030] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[  204.686287][ T1333] ieee802154 phy0 wpan0: encryption failed: -22
[  204.689759][ T1333] ieee802154 phy1 wpan1: encryption failed: -22
[  215.583005][ T1030] ata1.00: NCQ disabled due to excessive errors
[  215.586160][ T1030] ata1.00: exception Emask 0x0 SAct 0x200000 SErr 0x0 action 0x6 frozen
[  215.590240][ T1030] ata1.00: failed command: WRITE FPDMA QUEUED
[  215.593479][ T1030] ata1.00: cmd 61/00:a8:36:01:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou
[  215.593479][ T1030]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  215.602003][ T1030] ata1.00: status: { DRDY }
[  215.604240][ T1030] ata1: hard resetting link
[  215.924914][ T1030] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[  215.928961][ T1030] ata1.00: configured for UDMA/100
[  215.931929][ T1030] ata1: EH complete
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-build2217612868=/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 c1da772e0d
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=c1da772e0d2df8f734dddb8332553b2e56e2d9d9 -X github.com/google/syzkaller/prog.gitRevisionDate=20260624-084645"  ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=c1da772e0d2df8f734dddb8332553b2e56e2d9d9 -X github.com/google/syzkaller/prog.gitRevisionDate=20260624-084645"  ./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=c1da772e0d2df8f734dddb8332553b2e56e2d9d9 -X github.com/google/syzkaller/prog.gitRevisionDate=20260624-084645"  -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=\"c1da772e0d2df8f734dddb8332553b2e56e2d9d9\"
/usr/bin/ld: /tmp/ccJlcysS.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