From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6D26A27FB1F for ; Sat, 16 May 2026 12:35:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778934905; cv=none; b=PPmuJN4RIfixN+rPGb80BnnDqw+jcNfi4nlSEYKDCU8bIhxSi1tqhUdgGGkA71vtvzR0RyG9ofb6U4ooX3brUWn8+NOy88AJTuVBH7wMsTRH4ISiygq7wuitpwS1upYUDoqPnypHfPMoYIsILcEmYULIig/B90jgASeIRIqPbpc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778934905; c=relaxed/simple; bh=vJiTlWqR/6AHWe3sKT5ioEdqx6K+KloehC1d6xMumPk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=iLo0kZG7Ryub92n2K/0eP2YimbZceU5o91NjfqkTbwU0/IuqJ6KDNejxZojo0cXETMrA0hFYNEai2d5nY+CnosOBHPMAo3XmIVxXBTo6AhP2RT9/LcVgf6EDBeAy+9wnrcPj+e4dNQH4NzEqk9dsvxcRF+PhJYqv6F72kRBmJp8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f72.google.com with SMTP id 006d021491bc7-69b91d4f9b1so1131066eaf.3 for ; Sat, 16 May 2026 05:35:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778934902; x=1779539702; h=content-transfer-encoding:to:from:subject:message-id:in-reply-to :date:mime-version:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=L9Qc/jvKehfS3radgGtf6xoy0SDA+6/f/UELycCQWY8=; b=KWtAxV+eAVv1GAciEN6AapTv+Em9yIJJhPwXm+10NA+jCEbRIp3c80LsiqAjmT0HbW 0jv+YnRqB5Dc/aJvI2SoD5MyHziQQhJjj6/CQwVBtDlgmZ8E7dR1mP1UJAK/pw0X3g8t W73W16IK8HpXoW3b04YAkRuKortJrVNv9Zfd93XBDgzPtCthd/kyXFIqnZuqaVCBNqJi hDkd7i5YN21aUN/AcacbgCfZ6vjbo5rYhF0dJFWknbbouyAXJQghJ0RC6mNNsS9wINdD 6p5ZXsQmE5xH3F909ORbZQhGGScPqmb4FcRc2OYitwHelpYbdmMS4fRn/yY0fqmv9Q6A tzHg== X-Forwarded-Encrypted: i=1; AFNElJ/qwHUQ2zII/KwJXciPqGuL3cJrIGiLpxMz5Ukwh3pSMiVZK6ChonUaB02VbIww+hNbNdbDSaUEaqSd9WM=@vger.kernel.org X-Gm-Message-State: AOJu0Yw3xCHoKNl1yxHdn4E1pimmdm0shu638SPustVj+L2OpQ0viahp FvGoFZmUNV11mO+N5+MN/BNaDxhZ0Ng0DbhLYkYVxywPfP7W2LAFCZNmf6GCwSo6D778v85x8MR hMJ6ln0SvKXlF8Oj6nN0JyEuskzo/l2/C+Ab3hrjwgHt7JP8D6BA8bqrr+Og= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1795:b0:696:8ccc:55a0 with SMTP id 006d021491bc7-69c945808abmr4872356eaf.42.1778934902312; Sat, 16 May 2026 05:35:02 -0700 (PDT) Date: Sat, 16 May 2026 05:35:02 -0700 In-Reply-To: <20260516110423.721-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a086476.170a0220.4530d.0004.GAE@google.com> Subject: Re: [syzbot] [kernel?] INFO: task hung in nsim_bus_dev_del From: syzbot To: hdanton@sina.com, linux-kernel@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: can't ssh into the instance failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=3D= /dev/null" "-o" "IdentitiesOnly=3Dyes" "-o" "BatchMode=3Dyes" "-o" "StrictH= ostKeyChecking=3Dno" "-o" "ConnectTimeout=3D10" "root@10.128.1.219" "pwd"]:= exit status 255 ssh: connect to host 10.128.1.219 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[us-central1-ssh-serialport.googleapis.com]:960= 0' (ECDSA) to the list of known hosts. UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' serialport: Connected to syzkaller.us-central1-f.ci-upstream-gce-arm64-test= -job-0 port 1 (session ID: e70122d9217081b58b1e89fac32748d7c58bb332e094bd28= 8395bea51681d062, active connections: 1). UEFI firmware (version built at 09:00:00 on Jan 10 2025) EMU Variable FVB Started EMU Variable invalid PCD sizes Found PL031 RTC @ 0x9010000 InitializeRealTimeClock: using default timezone/daylight settings =1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B[01;01H=1B[2J=1B[01;01H=1B[=3D3h=1B[2J=1B= [01;01HBdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x= 2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0)= /NVMe(0x1,00-00-00-00-00-00-00-00) UEFI: Attempting to start image. Description: UEFI Misc Device FilePath: PciRoot(0x0)/Pci(0x2,0x0)/NVMe(0x1,00-00-00-00-00-00-00-00) OptionNumber: 1. Booting `syzkaller' 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-build976075348=3D/tmp/go-build -gno-record-gcc= -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 d168f260571 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=3Dd168f2605715ec7b7ab6840d636f69c758e424d9 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260511-154029" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3Dd168f2605715ec7b7ab6840d636f69c758e424d9 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260511-154029" ./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=3Darm64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dd168f2605715ec7b7ab6840d636f69c758e424d9 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260511-154029" -o ./bi= n/linux_arm64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_arm64 aarch64-linux-gnu-g++ -o ./bin/linux_arm64/syz-executor executor/executor.c= c \ -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-l= arger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-ove= rflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -stati= c-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH_arm6= 4=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"d168f2605715ec7b7ab6840d636f69c758= e424d9\" /usr/lib/gcc-cross/aarch64-linux-gnu/14/../../../../aarch64-linux-gnu/bin/l= d: /tmp/ccXJzoBr.o: in function `Connection::Connect(char const*, char cons= t*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x2ec): 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: 5cbb61bf arm64/fpsimd: ptrace: zero target's fpsimd_st.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.g= it for-kernelci kernel config: https://syzkaller.appspot.com/x/.config?x=3Da834c6344141a58= b dashboard link: https://syzkaller.appspot.com/bug?extid=3D1cf303af03cf30b12= 75a compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-= 1~exp1~20251221153213.50), Debian LLD 21.1.8 userspace arch: arm64 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D132e9bce5800= 00