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 635B032C94B for ; Sat, 18 Apr 2026 13:22:03 +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=1776518524; cv=none; b=lfMfY2ZDfq9TKmo70TgtFgE7TKog7/tba3eAg9ZArB5DbANmG3Mh6OoilmhJ3KuBUmYnMWnZX3wIxPzHhMeEW7gClK1utf096s5ZCbMXQMmddYHT7YPvdWaFzgg3UkbHoYaNn2XApZWWIqcJMYaLrBszII5k1D/PDxJJH1EOfkA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776518524; c=relaxed/simple; bh=PO98snLR/CMNWzl1HJF4gEafZIpLJHk/r+d8dHEZpa0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=PeTzUEXdxfLoN2bVlIZvpF/jmnle3t08rGyeAIXpNRw3C59z8bJ7WCuqLoohKQxcCTkvpCDNW2nVGolIUpHH0Z05dEqEw+glDyN+fNkl9nVRl91WTytlxM7gTKvaLFPVqDA8OeRPdyIqKbq9unLAll1/UGoKS2Pv1+QsBZ+ZQCI= 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 006d021491bc7-68826165bc9so1666173eaf.0 for ; Sat, 18 Apr 2026 06:22:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776518522; x=1777123322; 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=wKQb7F2RfoFFswWwJYikbJroUp8C5KMOdayDHEdNcnY=; b=Adj7UqYhCiambxyajlalOqA6EOu7ubKclcp3JZpwrSUezlNxis1PSkwraziTINPaO9 sjTQmaT0TFq6tXEGVuEHzrw3trMpa1g45ufNxQJiVV0Ol3UELqKbDoOzz+Rkb1VpIkZS wp5hfkLj+TvHiVFQ78n2saC1Rwc7bAFoxW3RDOlJgEvms/oYtFHBi+PuEYrblX5Zuils 6TETeSSDp1ZCankNxpyuPoLpGkI+yCPELH7zzhur8iMTShzEMFvf4S1sPlUb97/FKZlK bsDdfrm7Vz7PMpp77hLZidMVh9tZ/1EgeZIBBPx7J9oldmL/AbDoDLR5XgVQowhKb+7v SwlA== X-Gm-Message-State: AOJu0YzUqRIM0wcvHEZDNsRjRQhrY0Y5N+T24LCVu9QXKtsrNgi+md/o YvPD7HPLTqk7lvRQvyqgwjUn/Eoo7VkETvvUFzS1nOnhI7BxcY4QPAiBpK5PeVRI4+0uBuodwWS MUUkXoL4fvPEzwWri1Lq/FNE2h/44RqjtQJ7Rb5aHhfFlySWTHxmG3cXqOBM= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:605:b0:68e:d9b7:7a2e with SMTP id 006d021491bc7-69462e74cb4mr3980306eaf.24.1776518522448; Sat, 18 Apr 2026 06:22:02 -0700 (PDT) Date: Sat, 18 Apr 2026 06:22:02 -0700 In-Reply-To: <177651704643.751692.3381294817588900298@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69e3857a.a00a0220.1bd0ca.0045.GAE@google.com> Subject: Re: [syzbot] [gfs2?] WARNING in rgblk_free (2) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tristmd@gmail.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: lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0= ) is smaller than the requested size (0x189000) Warning: Permanently added '[localhost]:3088' (ED25519) to the list of know= n hosts. [ 97.018116][ T792] cfg80211: failed to load regulatory.db 2026/04/18 13:19:40 parsed 1 programs [ 99.795736][ T5312] cgroup: Unknown subsys name 'net' [ 99.853077][ T5312] cgroup: Unknown subsys name 'cpuset' [ 99.860170][ T5312] cgroup: Unknown subsys name 'rlimit' [ 143.089985][ T1317] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.093657][ T1317] ieee802154 phy1 wpan1: encryption failed: -22 [ 151.426707][ T1015] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 ac= tion 0x6 frozen [ 151.430766][ T1015] ata1.00: failed command: WRITE FPDMA QUEUED [ 151.433794][ T1015] ata1.00: cmd 61/48:70:86:69:04/0c:00:00:00:00/40 tag= 14 ncq dma 1609728 ou [ 151.433794][ T1015] res 40/00:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x4 (timeout) [ 151.444306][ T1015] ata1.00: status: { DRDY } [ 151.447876][ T1015] ata1: hard resetting link [ 151.768951][ T1015] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 30= 0) [ 151.775733][ T1015] ata1.00: configured for UDMA/100 [ 151.779901][ T1015] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than= the requested size (0x400000) [ 204.530424][ T1317] ieee802154 phy0 wpan0: encryption failed: -22 [ 204.533680][ T1317] ieee802154 phy1 wpan1: encryption failed: -22 [ 212.226504][ T1015] ata1.00: NCQ disabled due to excessive errors [ 212.229261][ T1015] ata1.00: exception Emask 0x0 SAct 0x20 SErr 0x0 acti= on 0x6 frozen [ 212.232865][ T1015] ata1.00: failed command: WRITE FPDMA QUEUED [ 212.235571][ T1015] ata1.00: cmd 61/00:28:36:e1:04/20:00:00:00:00/40 tag= 5 ncq dma 4194304 ou [ 212.235571][ T1015] res 40/00:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x4 (timeout) [ 212.244212][ T1015] ata1.00: status: { DRDY } [ 212.246880][ T1015] ata1: hard resetting link [ 212.569679][ T1015] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 30= 0) [ 212.573877][ T1015] ata1.00: configured for UDMA/100 [ 212.577625][ T1015] ata1: EH complete qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= =3D 0 && prep_size <=3D n * 512' failed. Connection to localhost closed by remote host. 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-build990864419=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 d1b870e1003b 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=3Dd1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20251128-125159" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3Dd1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20251128-125159" ./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=3Dd1b870e1003b52891d2196c1e2ee42fe905010ba -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20251128-125159" -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\"d1b870e1003b52891d2196c1e2ee42fe90= 5010ba\" /usr/bin/ld: /tmp/ccnEfuCO.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: 8541d8f7 Merge tag 'mtd/for-7.1' of git://git.kernel.o.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li= nux.git master kernel config: https://syzkaller.appspot.com/x/.config?x=3D293619ea06e31cd= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3D3e2c95229d1ab81a0= bfd compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-= 1~exp1~20251221153213.50), Debian LLD 21.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D11f319065800= 00