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AFNElJ+cO9yioHb7e4g/XAAwP+8bhCsFuAZ2z9gpUW8jIjQWALoU2sKTboMv2DBC6n0k5SH5uhnQ6kE=@vger.kernel.org X-Gm-Message-State: AOJu0Ywp9zEK4QXWM5DUZhFAVeidKl3D5YHzehUfRd7sTretA0S/UOB9 VhNuu6rWBRZyMPbI2IovmzBSCaOWsiuWwxYiiFB7Bz5qAOU9MKRqU/6NbTKf10HIR4cvYGtQGci VsU1HL6ZADhAHqcAnXbOJJyX5CXGHlUDux/Up03b76pNN/7nPeWpSUXJgUbI= Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:159d:b0:46a:d9fc:1423 with SMTP id 5614622812f47-4799ca4b7f1mr10611990b6e.33.1776798183245; Tue, 21 Apr 2026 12:03:03 -0700 (PDT) Date: Tue, 21 Apr 2026 12:03:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69e7c9e7.a00a0220.17a17.001c.GAE@google.com> Subject: Re: [syzbot] [kvm?] [net?] [virt?] BUG: sleeping function called from invalid context in vhost_get_avail_idx From: syzbot To: jasowang@redhat.com, kohei@enjuk.jp, linux-kernel@vger.kernel.org, mst@redhat.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: failed to copy syz-execprog to VM: scp failed: failed to run ["scp" "-P" "3= 6338" "-F" "/dev/null" "-o" "UserKnownHostsFile=3D/dev/null" "-o" "Identiti= esOnly=3Dyes" "-o" "BatchMode=3Dyes" "-o" "StrictHostKeyChecking=3Dno" "-o"= "ConnectTimeout=3D10" "-v" "/syzkaller/jobs/linux/gopath/src/github.com/go= ogle/syzkaller/bin/linux_amd64/syz-execprog" "root@localhost:/syz-execprog"= ]: exit status 1 syzkaller build log: go env (err=3D) AR=3D'ar' CC=3D'gcc' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_ENABLED=3D'1' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' CXX=3D'g++' GCCGO=3D'gccgo' GO111MODULE=3D'auto' GOAMD64=3D'v1' GOARCH=3D'amd64' GOAUTH=3D'netrc' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOCACHEPROG=3D'' GODEBUG=3D'' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFIPS140=3D'off' GOFLAGS=3D'' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build4123752491=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTELEMETRY=3D'local' GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.26.0' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at 5be7a9deb87 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/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/pr= og.GitRevision=3D5be7a9deb87612d05fcc86125226d72bc2297875 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260417-202028" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D5be7a9deb87612d05fcc86125226d72bc2297875 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260417-202028" ./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/contribut= ing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D5be7a9deb87612d05fcc86125226d72bc2297875 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260417-202028" -o ./bi= n/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 -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"5be7a9deb87612d05fcc86125226d72bc2= 297875\" /usr/bin/ld: /tmp/ccUDlBPa.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking ./tools/check-syzos.sh 2>/dev/null Tested on: commit: 4ee64205 Merge tag 'clk-for-linus' of git://git.kernel.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3D95ee3fe1c5a8ab5= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3D6985cb8e543ea90ba= 8ee compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Deb= ian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D122eb4ce5800= 00