From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f70.google.com (mail-oa1-f70.google.com [209.85.160.70]) (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 63BF4239E60 for ; Thu, 24 Sep 2026 04:39:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790224746; cv=none; b=CmWZPjqAjcWpBEjMI8BtJNzI0ajFv9/Drsxcovhmj3laYIelfkr4cStg4nVnkW8bc2Ra2m2Vn+VLaZ5ai+Er39po/q1iwqJ66+0zIre+vuPd7km/rKQPmJAtwHJ2QGqCtT7jcOJhhaVn8f3XeT7OGFHwiQO58wUlIYWHORY3LNo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790224746; c=relaxed/simple; bh=VhbdhbfB4jK4rXTMZYajcxg+rYaXHGIHLygN/VzGa3s=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=o2BWF+Wf9CBSdTZB5DfrW8iUQTypj23I9Dgg4s+Jg8Rk9zo8fE1k+tpuvaKKnjxbxJTBQbIsCWH/O/kRS+Dn2naVUosvEi0eYrYvfGNoPPmNTDTgAIoeHKedh6U+MjVgFrD5GeBidL8NOn+MlpSworBBQ7ENljupuu6X6wIBjec= 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=209.85.160.70 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-oa1-f70.google.com with SMTP id 586e51a60fabf-46617932071so1290335fac.0 for ; Wed, 23 Sep 2026 21:39:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790224743; x=1790829543; h=content-transfer-encoding:content-type:to:from:subject:message-id :in-reply-to:date:mime-version:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to:content-type; bh=ldXsmXgypLLL+wLsd1iuCDempyl4RLGRw/uTvRFLqqs=; b=k7jNe1vtMaM+nyvGH8WtSyN9bP/fdq7/rno35jYB7FbCqI4bCDAxwEP14P7mnV/znA bDmi3QezZLAMiap0U53f6vE2QvYGUwjIt+w5q19m1Uqn9eJxCyrom+YFqUFphyTUYbaU XD0jBJ4MadeBMqGm4ACMiozjJ1ukAc4ZvgayftfHM47povxkYzCie3cmRahtw0H/eXRW oHpUBTC19qBjR6dgYJgR3m0UDof+pm0oxufhCsjLx5XTeiN3xx4yTo1WLSrNLFcYLIDp R9DiBwe+h1j1rSYYRCq4LVBVTjYn2VInqiI/RDObgKdKnh+Bb+Q2npFNwi2uxyBW0y/B SIIQ== X-Gm-Message-State: AFuF++k8ADX2sjm0bKWE8HZDPzRk+MOkTavzlBVqWF4nIPi2VPzH8Or2 fmR512vvMEYIbQAkIxjKpVKwaDHuPKxF2A3Iw/2G/TrDR/+1Xqu3WM2aHGqzl6aEnyb7i4DxLld e41KGlQnM6F6FYVSvili7UqvboXphs+N71PUnm1AeXLNEV4lnCMvYz3mPd5E= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6809:203:10b0:4c3:7073:8c4d with SMTP id 5614622812f47-4d72aa4be39mr1140617b6e.20.1790224743287; Wed, 23 Sep 2026 21:39:03 -0700 (PDT) Date: Wed, 23 Sep 2026 21:39:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ab4a967.80e1c6cc.1e8e5f.0009.GAE@google.com> Subject: Re: [syzbot] [usb?] INFO: task hung in usbatm_usb_disconnect (2) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, valigurasm@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 Warning: Permanently added '10.128.0.152' (ED25519) to the list of known ho= sts. [ 104.110945][ T26] cfg80211: failed to load regulatory.db 2026/09/24 04:37:36 parsed 1 programs 2026/09/24 04:37:36 serving rpc on tcp://45101 [ 108.765106][ T5627] cgroup: Unknown subsys name 'net' [ 108.845318][ T5627] cgroup: Unknown subsys name 'cpuset' [ 108.849022][ T5627] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size =3D 127995904 bytes [ 110.759122][ T5627] Adding 124996k swap on ./swap-file. Priority:0 exte= nts:1 across:124996k=20 [ 115.031120][ T5645] soft_limit_in_bytes is deprecated and will be remove= d. Writing any value to this file has no effect. Please report your usecase= to linux-mm@kvack.org if you depend on this functionality. [ 115.107820][ T63] wlan0: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 115.107856][ T63] wlan0: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 115.144771][ T5645] ebtables: xtables 32bit compat interface no longer s= upported in namespaces and will be removed soon. [ 115.168053][ T5646] arp_tables: xtables 32bit compat interface no longer= supported in namespaces and will be removed soon. [ 115.168581][ T5646] ip_tables: xtables 32bit compat interface no longer = supported in namespaces and will be removed soon. [ 115.197491][ T5646] ip6_tables: xtables 32bit compat interface no longer= supported in namespaces and will be removed soon. [ 115.449611][ T15] wlan1: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 115.449637][ T15] wlan1: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 115.976932][ T5664] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > = 1 [ 115.978489][ T5664] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > = 9 [ 115.980422][ T5664] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > = 9 [ 116.010825][ T5664] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > = 4 [ 116.012286][ T5664] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > = 2 [ 119.679966][ T5683] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 119.681240][ T5683] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 119.681447][ T5683] bridge_slave_0: entered allmulticast mode [ 119.684621][ T5683] bridge_slave_0: entered promiscuous mode [ 119.729993][ T5683] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 119.730125][ T5683] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 119.730266][ T5683] bridge_slave_1: entered allmulticast mode [ 119.737183][ T5683] bridge_slave_1: entered promiscuous mode [ 119.792880][ T5683] bond0: (slave bond_slave_0): Enslaving as an active = interface with an up link [ 119.797134][ T5683] bond0: (slave bond_slave_1): Enslaving as an active = interface with an up link [ 119.857045][ T5683] team0: Port device team_slave_0 added [ 119.860034][ T5683] team0: Port device team_slave_1 added [ 119.908092][ T5683] batman_adv: batadv0: Adding interface: batadv_slave_= 0 [ 119.908107][ T5683] batman_adv: batadv0: The MTU of interface batadv_sla= ve_0 is too small (1500) to handle the transport of batman-adv packets. Pac= kets going over this interface will be fragmented on layer2 which could imp= act the performance. Setting the MTU to 1532 would solve the problem. [ 119.908142][ T5683] batman_adv: batadv0: Not using interface batadv_slav= e_0 (retrying later): interface not active [ 119.918496][ T5683] batman_adv: batadv0: Adding interface: batadv_slave_= 1 [ 119.918552][ T5683] batman_adv: batadv0: The MTU of interface batadv_sla= ve_1 is too small (1500) to handle the transport of batman-adv packets. Pac= kets going over this interface will be fragmented on layer2 which could imp= act the performance. Setting the MTU to 1532 would solve the problem. [ 119.918620][ T5683] batman_adv: batadv0: Not using interface batadv_slav= e_1 (retrying later): interface not active [ 120.065869][ T5683] hsr_slave_0: entered promiscuous mode [ 120.067223][ T5683] hsr_slave_1: entered promiscuous mode [ 120.309950][ T5683] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 120.331221][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsi= m0 [ 120.332756][ T5683] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 120.338769][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsi= m1 [ 120.340191][ T5683] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 120.379794][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsi= m2 [ 120.391372][ T5683] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 120.395616][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsi= m3 [ 120.522673][ T5683] 8021q: adding VLAN 0 to HW filter on device bond0 [ 120.571852][ T5683] 8021q: adding VLAN 0 to HW filter on device team0 [ 120.586140][ T1107] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 120.587099][ T1107] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 120.623606][ T1107] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 120.623719][ T1107] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 121.166859][ T5683] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 121.225906][ T5683] veth0_vlan: entered promiscuous mode [ 121.245659][ T5683] veth1_vlan: entered promiscuous mode [ 121.283334][ T5683] veth0_macvtap: entered promiscuous mode [ 121.288501][ T5683] veth1_macvtap: entered promiscuous mode [ 121.328425][ T5683] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 121.347773][ T5683] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 [ 121.385467][ T61] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 121.441224][ T15] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 121.441689][ T12] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 121.441730][ T12] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt= (ARPT_SO_GET_ENTRIES) failed. table=3Dfilter (errno 22: Invalid argument). [ 121.545150][ T15] netdevsim netdevsim1 netdevsim3 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 121.735392][ T15] netdevsim netdevsim1 netdevsim2 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 121.813228][ T15] netdevsim netdevsim1 netdevsim1 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 122.585900][ T15] netdevsim netdevsim1 netdevsim0 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 123.977067][ T15] bridge_slave_1: left allmulticast mode [ 123.977125][ T15] bridge_slave_1: left promiscuous mode [ 123.978185][ T15] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 124.009571][ T15] bridge_slave_0: left allmulticast mode [ 124.009602][ T15] bridge_slave_0: left promiscuous mode [ 124.009818][ T15] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 124.205269][ T15] bond0 (unregistering): (slave bond_slave_0): Releasi= ng backup interface [ 124.208371][ T15] bond0 (unregistering): (slave bond_slave_1): Releasi= ng backup interface [ 124.209896][ T15] bond0 (unregistering): Released all slaves [ 124.322497][ T15] hsr_slave_0: left promiscuous mode [ 124.323234][ T15] hsr_slave_1: left promiscuous mode [ 124.324049][ T15] batman_adv: batadv0: Interface deactivated: batadv_s= lave_0 [ 124.324083][ T15] batman_adv: batadv0: Removing interface: batadv_slav= e_0 [ 124.325113][ T15] batman_adv: batadv0: Interface deactivated: batadv_s= lave_1 [ 124.325139][ T15] batman_adv: batadv0: Removing interface: batadv_slav= e_1 [ 124.335409][ T15] veth1_macvtap: left promiscuous mode [ 124.335600][ T15] veth0_macvtap: left promiscuous mode [ 124.335904][ T15] veth1_vlan: left promiscuous mode [ 124.336341][ T15] veth0_vlan: left promiscuous mode [ 124.635344][ T15] team0 (unregistering): Port device team_slave_1 remo= ved [ 124.659419][ T15] team0 (unregistering): Port device team_slave_0 remo= ved [ 125.298901][ T5277] 8021q: adding VLAN 0 to HW filter on device eth1 [ 125.817831][ T5277] 8021q: adding VLAN 0 to HW filter on device eth2 [ 126.281718][ T5277] 8021q: adding VLAN 0 to HW filter on device eth3 [ 126.874157][ T5277] 8021q: adding VLAN 0 to HW filter on device eth4 [ 139.942150][ T1311] ieee802154 phy0 wpan0: encryption failed: -22 [ 139.942221][ T1311] ieee802154 phy1 wpan1: encryption failed: -22 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-build2772565244=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.= mod' GOMODCACHE=3D'/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs-2/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 853b104bb45 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=3D853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260918-062331" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260918-062331" ./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=3D853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260918-062331" -o ./bi= n/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_386 x86_64-linux-gnu-g++ -o ./bin/linux_386/syz-executor executor/executor.cc \ -m32 -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= _386=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"853b104bb454141a5b0fc0e4218ec78e9f= 34ffb1\" /usr/bin/ld: /tmp/ccrvmrqk.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x145): 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 [INFO] Unsupported architecture '386', skipping check. Tested on: commit: 62f4c998 Merge tag 'parisc-for-7.3-rc5' of git://git.k.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3D9d4242cb1c54cdf= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3D9ca2c9f85bd8b5e46= 516 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-= 1~exp1~20260613092250.77), Debian LLD 22.1.8 userspace arch: i386 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D1048b4055800= 00