From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B901C07E96 for ; Sun, 11 Jul 2021 14:39:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 74B8061164 for ; Sun, 11 Jul 2021 14:39:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233098AbhGKOl4 (ORCPT ); Sun, 11 Jul 2021 10:41:56 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:55232 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233036AbhGKOl4 (ORCPT ); Sun, 11 Jul 2021 10:41:56 -0400 Received: by mail-il1-f199.google.com with SMTP id r19-20020a92c5b30000b02901f175acc987so10058613ilt.21 for ; Sun, 11 Jul 2021 07:39:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Cg+euSBsJkC16H8LHYIY+z2hry6pCPL+kVcPt36wfsA=; b=nGCL+CcMNfou3YiPG373wd284Atz4m7SYLQ8oODPq5pjM7UDhaqj951clbJD58L+pk Us9BibY/o7+SW93y8L8dgCY2PISlY3CTR2zSEXE7k4YihJ+/vRnz7U2l83pq4CTDX7r0 TJ0iRk87SeOIxbbczZ6vQKoJnaaBBmfvvwzIaUW3ZwCl964+r0/+b4ZyUVtlHoTlz3wG U5EpkPbMkL7koKyJMhbs67DFNSedR3mbTD6Lx0TryARVdOAFQiZVfKvf1RyjwybKE4p/ soIOjQc/gQA+KyQX8Th+q4nC4hRYG+9D1k5fGkX1HitzH7cAfkVcdQ3HrLVZjrY7LLTM NsBQ== X-Gm-Message-State: AOAM5322B7bMo0OTK3j3wn2wXcpp86MRgprTJbZhI/y1MsbzUoinZoAS drm9CsBrIHlGVxEnib/r77M6xeR42rPk+5tbnvJWNNG3ho1i X-Google-Smtp-Source: ABdhPJzlMZWMkNq6+XPjPsidM2nH7RZEmD3z9+Jn65PEeVZIHpU32cp0oq/f5UkskSEfI+4LDtOfih6aWiooTxXwppbg9UX8J4sp MIME-Version: 1.0 X-Received: by 2002:a92:3009:: with SMTP id x9mr33480086ile.49.1626014349059; Sun, 11 Jul 2021 07:39:09 -0700 (PDT) Date: Sun, 11 Jul 2021 07:39:09 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000aceafa05c6d9f795@google.com> Subject: Re: [syzbot] INFO: task hung in io_uring_cancel_generic From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot tried to test the proposed patch but the build/boot failed: ace driver bcm203x [ 9.302351][ T1] usbcore: registered new interface driver bpa10x [ 9.303473][ T1] usbcore: registered new interface driver bfusb [ 9.305628][ T1] usbcore: registered new interface driver btusb [ 9.306881][ T1] usbcore: registered new interface driver ath3k [ 9.308526][ T1] CAPI 2.0 started up with major 68 (middleware) [ 9.309416][ T1] Modular ISDN core version 1.1.29 [ 9.310922][ T1] NET: Registered PF_ISDN protocol family [ 9.312213][ T1] DSP module 2.0 [ 9.312966][ T1] mISDN_dsp: DSP clocks every 80 samples. This equals 1 jiffies. [ 9.327662][ T1] mISDN: Layer-1-over-IP driver Rev. 2.00 [ 9.329185][ T1] 0 virtual devices registered [ 9.330263][ T1] usbcore: registered new interface driver HFC-S_USB [ 9.331803][ T1] VUB300 Driver rom wait states = 1C irqpoll timeout = 0400 [ 9.332793][ T1] usbcore: registered new interface driver vub300 [ 9.335457][ T1] usbcore: registered new interface driver ushc [ 9.342005][ T1] iscsi: registered transport (iser) [ 9.343604][ T1] SoftiWARP attached [ 9.344289][ T1] Driver 'framebuffer' was unable to register with bus_type 'coreboot' because the bus was not initialized. [ 9.346043][ T1] Driver 'memconsole' was unable to register with bus_type 'coreboot' because the bus was not initialized. [ 9.347617][ T1] Driver 'vpd' was unable to register with bus_type 'coreboot' because the bus was not initialized. [ 9.357668][ T1] hid: raw HID events driver (C) Jiri Kosina [ 9.385985][ T1] usbcore: registered new interface driver usbhid [ 9.387037][ T1] usbhid: USB HID core driver [ 9.390066][ T1] usbcore: registered new interface driver es2_ap_driver [ 9.393006][ T1] comedi: version 0.7.76 - http://www.comedi.org [ 9.394302][ T1] usbcore: registered new interface driver dt9812 [ 9.395545][ T1] usbcore: registered new interface driver ni6501 [ 9.396763][ T1] usbcore: registered new interface driver usbdux [ 9.397991][ T1] usbcore: registered new interface driver usbduxfast [ 9.399198][ T1] usbcore: registered new interface driver usbduxsigma [ 9.402039][ T1] usbcore: registered new interface driver vmk80xx [ 9.403629][ T1] usbcore: registered new interface driver prism2_usb [ 9.405013][ T1] usbcore: registered new interface driver r8712u [ 9.407131][ T1] ashmem: initialized [ 9.408362][ T1] greybus: registered new driver hid [ 9.409362][ T1] greybus: registered new driver gbphy [ 9.410305][ T1] gb_gbphy: registered new driver usb [ 9.411889][ T1] asus_wmi: ASUS WMI generic driver loaded [ 9.486305][ T1] usbcore: registered new interface driver snd-usb-audio [ 9.487650][ T1] usbcore: registered new interface driver snd-ua101 [ 9.488918][ T1] usbcore: registered new interface driver snd-usb-usx2y [ 9.492672][ T1] usbcore: registered new interface driver snd-usb-us122l [ 9.494778][ T1] usbcore: registered new interface driver snd-usb-caiaq [ 9.496007][ T1] usbcore: registered new interface driver snd-usb-6fire [ 9.497262][ T1] usbcore: registered new interface driver snd-usb-hiface [ 9.498782][ T1] usbcore: registered new interface driver snd-bcd2000 [ 9.499887][ T1] usbcore: registered new interface driver snd_usb_pod [ 9.501897][ T1] usbcore: registered new interface driver snd_usb_podhd [ 9.503388][ T1] usbcore: registered new interface driver snd_usb_toneport [ 9.505421][ T1] usbcore: registered new interface driver snd_usb_variax [ 9.506582][ T1] drop_monitor: Initializing network drop monitor service [ 9.508642][ T1] NET: Registered PF_LLC protocol family [ 9.509528][ T1] GACT probability on [ 9.510771][ T1] Mirror/redirect action on [ 9.511554][ T1] Simple TC action Loaded [ 9.514496][ T1] netem: version 1.3 [ 9.515461][ T1] u32 classifier [ 9.515990][ T1] Performance counters on [ 9.516615][ T1] input device check on [ 9.517586][ T1] Actions configured [ 9.519992][ T1] nf_conntrack_irc: failed to register helpers [ 9.521431][ T1] nf_conntrack_sane: failed to register helpers [ 9.558483][ T1] nf_conntrack_sip: failed to register helpers [ 9.563419][ T1] xt_time: kernel timezone is -0000 [ 9.564476][ T1] IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP) [ 9.565840][ T1] IPVS: Connection hash table configured (size=4096, memory=64Kbytes) [ 9.567503][ T1] IPVS: ipvs loaded. [ 9.568192][ T1] IPVS: [rr] scheduler registered. [ 9.568956][ T1] IPVS: [wrr] scheduler registered. [ 9.569738][ T1] IPVS: [lc] scheduler registered. [ 9.570511][ T1] IPVS: [wlc] scheduler registered. [ 9.571373][ T1] IPVS: [fo] scheduler registered. [ 9.572445][ T1] IPVS: [ovf] scheduler registered. [ 9.573312][ T1] IPVS: [lblc] scheduler registered. [ 9.574091][ T1] IPVS: [lblcr] scheduler registered. [ 9.575006][ T1] IPVS: [dh] scheduler registered. [ 9.575796][ T1] IPVS: [sh] scheduler registered. [ 9.576720][ T1] IPVS: [mh] scheduler registered. [ 9.577462][ T1] IPVS: [sed] scheduler registered. [ 9.578179][ T1] IPVS: [nq] scheduler registered. [ 9.578924][ T1] IPVS: [twos] scheduler registered. [ 9.580010][ T1] IPVS: [sip] pe registered. [ 9.580916][ T1] ipip: IPv4 and MPLS over IPv4 tunneling driver [ 9.583382][ T1] gre: GRE over IPv4 demultiplexor driver [ 9.584183][ T1] ip_gre: GRE over IPv4 tunneling driver [ 9.589932][ T1] IPv4 over IPsec tunneling driver [ 9.593837][ T1] ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully [ 9.594983][ T1] Initializing XFRM netlink socket [ 9.596079][ T1] IPsec XFRM device driver [ 9.598464][ T1] NET: Registered PF_INET6 protocol family [ 9.608978][ T1] Segment Routing with IPv6 [ 9.609706][ T1] RPL Segment Routing with IPv6 [ 9.610809][ T1] mip6: Mobile IPv6 [ 9.615121][ T1] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 9.619694][ T1] ip6_gre: GRE over IPv6 tunneling driver [ 9.622557][ T1] NET: Registered PF_PACKET protocol family [ 9.623545][ T1] NET: Registered PF_KEY protocol family [ 9.624882][ T1] Bridge firewalling registered [ 9.626399][ T1] NET: Registered PF_X25 protocol family [ 9.627654][ T1] X25: Linux Version 0.2 [ 9.658018][ T1] NET: Registered PF_NETROM protocol family [ 9.690465][ T1] NET: Registered PF_ROSE protocol family [ 9.691536][ T1] NET: Registered PF_AX25 protocol family [ 9.692549][ T1] can: controller area network core [ 9.693668][ T1] NET: Registered PF_CAN protocol family [ 9.694924][ T1] can: raw protocol [ 9.695672][ T1] can: broadcast manager protocol [ 9.696412][ T1] can: netlink gateway - max_hops=1 [ 9.698003][ T1] can: SAE J1939 [ 9.698531][ T1] can: isotp protocol [ 9.699817][ T1] Bluetooth: RFCOMM TTY layer initialized [ 9.702356][ T1] Bluetooth: RFCOMM socket layer initialized [ 9.703679][ T1] Bluetooth: RFCOMM ver 1.11 [ 9.704852][ T1] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 9.705927][ T1] Bluetooth: BNEP filters: protocol multicast [ 9.706958][ T1] Bluetooth: BNEP socket layer initialized [ 9.707792][ T1] Bluetooth: CMTP (CAPI Emulation) ver 1.0 [ 9.708751][ T1] Bluetooth: CMTP socket layer initialized [ 9.709753][ T1] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 9.710823][ T1] Bluetooth: HIDP socket layer initialized [ 9.714808][ T1] NET: Registered PF_RXRPC protocol family [ 9.715884][ T1] Key type rxrpc registered [ 9.716522][ T1] Key type rxrpc_s registered [ 9.718643][ T1] NET: Registered PF_KCM protocol family [ 9.720344][ T1] lec:lane_module_init: lec.c: initialized [ 9.721491][ T1] mpoa:atm_mpoa_init: mpc.c: initialized [ 9.722893][ T1] l2tp_core: L2TP core driver, V2.0 [ 9.723943][ T1] l2tp_ppp: PPPoL2TP kernel driver, V2.0 [ 9.724919][ T1] l2tp_ip: L2TP IP encapsulation support (L2TPv3) [ 9.726037][ T1] l2tp_netlink: L2TP netlink interface [ 9.726945][ T1] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) [ 9.728211][ T1] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3) [ 9.729626][ T1] NET: Registered PF_PHONET protocol family [ 9.731015][ T1] 8021q: 802.1Q VLAN Support v1.8 [ 9.740161][ T1] DCCP: Activated CCID 2 (TCP-like) [ 9.741707][ T1] DCCP: Activated CCID 3 (TCP-Friendly Rate Control) [ 9.744573][ T1] sctp: Hash tables configured (bind 32/56) [ 9.747220][ T1] NET: Registered PF_RDS protocol family [ 9.749148][ T1] Registered RDS/infiniband transport [ 9.750956][ T1] Registered RDS/tcp transport [ 9.751705][ T1] tipc: Activated (version 2.0.0) [ 9.752972][ T1] NET: Registered PF_TIPC protocol family [ 9.754278][ T1] tipc: Started in single node mode [ 9.755659][ T1] NET: Registered PF_SMC protocol family [ 9.756824][ T1] 9pnet: Installing 9P2000 support [ 9.757958][ T1] NET: Registered PF_CAIF protocol family [ 9.763274][ T1] NET: Registered PF_IEEE802154 protocol family [ 9.764544][ T1] Key type dns_resolver registered [ 9.765265][ T1] Key type ceph registered [ 9.766634][ T1] libceph: loaded (mon/osd proto 15/24) [ 9.769906][ T1] batman_adv: B.A.T.M.A.N. advanced 2021.2 (compatibility version 15) loaded [ 9.771371][ T1] openvswitch: Open vSwitch switching datapath [ 9.774437][ T1] NET: Registered PF_VSOCK protocol family [ 9.775493][ T1] mpls_gso: MPLS GSO support [ 9.785657][ T1] IPI shorthand broadcast: enabled [ 9.786804][ T1] AVX2 version of gcm_enc/dec engaged. [ 9.787910][ T1] AES CTR mode by8 optimization enabled [ 9.794810][ T1] sched_clock: Marking stable (9773193399, 21522192)->(9795960439, -1244848) [ 9.797259][ T1] registered taskstats version 1 [ 9.805286][ T1] Loading compiled-in X.509 certificates [ 9.807833][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: f850c787ad998c396ae089c083b940ff0a9abb77' [ 9.810756][ T1] zswap: loaded using pool lzo/zbud [ 9.812477][ T1] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers [ 9.814730][ T1] Key type ._fscrypt registered [ 9.815701][ T1] Key type .fscrypt registered [ 9.816492][ T1] Key type fscrypt-provisioning registered [ 9.819908][ T1] kAFS: Red Hat AFS client v0.1 registering. [ 9.821630][ T1] FS-Cache: Netfs 'afs' registered for caching [ 9.829938][ T1] Btrfs loaded, crc32c=crc32c-intel, assert=on, zoned=yes [ 9.832751][ T1] Key type big_key registered [ 9.836164][ T1] Key type encrypted registered [ 9.836954][ T1] AppArmor: AppArmor sha1 policy hashing enabled [ 9.837875][ T1] ima: No TPM chip found, activating TPM-bypass! [ 9.838746][ T1] Loading compiled-in module X.509 certificates [ 9.840036][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: f850c787ad998c396ae089c083b940ff0a9abb77' [ 9.841866][ T1] ima: Allocated hash algorithm: sha256 [ 9.842970][ T1] ima: No architecture policies found [ 9.844189][ T1] evm: Initialising EVM extended attributes: [ 9.845100][ T1] evm: security.selinux (disabled) [ 9.845782][ T1] evm: security.SMACK64 (disabled) [ 9.846463][ T1] evm: security.SMACK64EXEC (disabled) [ 9.847188][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 9.848128][ T1] evm: security.SMACK64MMAP (disabled) [ 9.848898][ T1] evm: security.apparmor [ 9.849482][ T1] evm: security.ima [ 9.850284][ T1] evm: security.capability [ 9.851141][ T1] evm: HMAC attrs: 0x1 [ 9.851611][ T855] floppy0: no floppy controllers found [ 9.853250][ T855] work still pending [ 9.854504][ T1] PM: Magic number: 13:793:535 [ 9.855444][ T1] usb usb35-port4: hash matches [ 9.857025][ T1] bdi 1:13: hash matches [ 9.859054][ T1] printk: console [netcon0] enabled [ 9.859823][ T1] netconsole: network logging started [ 9.860932][ T1] gtp: GTP module loaded (pdp ctx size 104 bytes) [ 9.863283][ T1] rdma_rxe: loaded [ 9.865260][ T1] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 9.868221][ T1] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 9.870545][ T7] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 9.871871][ T1] ALSA device list: [ 9.872225][ T7] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db [ 9.872637][ T1] #0: Dummy 1 [ 9.874348][ T1] #1: Loopback 1 [ 9.874960][ T1] #2: Virtual MIDI Card 1 [ 9.877845][ T1] md: Waiting for all devices to be available before autodetect [ 9.879094][ T1] md: If you don't use raid, use raid=noautodetect [ 9.880372][ T1] md: Autodetecting RAID arrays. [ 9.881327][ T1] md: autorun ... [ 9.881824][ T1] md: ... autorun DONE. [ 9.885213][ T1] VFS: Cannot open root device "sda1" or unknown-block(0,0): error -6 [ 9.886783][ T1] Please append a correct "root=" boot option; here are the available partitions: [ 9.888572][ T1] 0100 4096 ram0 [ 9.888583][ T1] (driver?) [ 9.889669][ T1] 0101 4096 ram1 [ 9.889677][ T1] (driver?) [ 9.890870][ T1] 0102 4096 ram2 [ 9.890884][ T1] (driver?) [ 9.892018][ T1] 0103 4096 ram3 [ 9.892027][ T1] (driver?) [ 9.893121][ T1] 0104 4096 ram4 [ 9.893129][ T1] (driver?) [ 9.894283][ T1] 0105 4096 ram5 [ 9.894291][ T1] (driver?) [ 9.895698][ T1] 0106 4096 ram6 [ 9.895706][ T1] (driver?) [ 9.896758][ T1] 0107 4096 ram7 [ 9.896766][ T1] (driver?) [ 9.898038][ T1] 0108 4096 ram8 [ 9.898046][ T1] (driver?) [ 9.899196][ T1] 0109 4096 ram9 [ 9.899204][ T1] (driver?) [ 9.901225][ T1] 010a 4096 ram10 [ 9.901235][ T1] (driver?) [ 9.902295][ T1] 010b 4096 ram11 [ 9.902303][ T1] (driver?) [ 9.903361][ T1] 010c 4096 ram12 [ 9.903369][ T1] (driver?) [ 9.904433][ T1] 010d 4096 ram13 [ 9.904441][ T1] (driver?) [ 9.905537][ T1] 010e 4096 ram14 [ 9.905545][ T1] (driver?) [ 9.906605][ T1] 010f 4096 ram15 [ 9.906613][ T1] (driver?) [ 9.907702][ T1] 1f00 128 mtdblock0 [ 9.907710][ T1] (driver?) [ 9.909222][ T1] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 9.910524][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.13.0-syzkaller #0 [ 9.911577][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 9.913030][ T1] Call Trace: [ 9.913582][ T1] dump_stack_lvl+0xcd/0x134 [ 9.914352][ T1] panic+0x306/0x73d [ 9.914959][ T1] ? __warn_printk+0xf3/0xf3 [ 9.916524][ T1] mount_block_root+0x3f8/0x4dd [ 9.917211][ T1] ? init_rootfs+0x59/0x59 [ 9.918287][ T1] ? memcpy+0x39/0x60 [ 9.919164][ T1] mount_root+0x1af/0x1f5 [ 9.919838][ T1] ? mount_block_root+0x4dd/0x4dd [ 9.920611][ T1] ? memcpy+0x39/0x60 [ 9.921332][ T1] prepare_namespace+0x1ff/0x234 [ 9.922015][ T1] kernel_init_freeable+0x729/0x741 [ 9.922766][ T1] ? rest_init+0x3e0/0x3e0 [ 9.923398][ T1] kernel_init+0x1a/0x1d0 [ 9.924014][ T1] ? rest_init+0x3e0/0x3e0 [ 9.924684][ T1] ret_from_fork+0x1f/0x30 [ 9.931512][ T1] Kernel Offset: disabled [ 9.932134][ T1] Rebooting in 86400 seconds.. Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=115cd5e4300000 Tested on: commit: 1b2d5f60 io_uring: use right task for exiting checks git tree: git://git.kernel.dk/linux-block io_uring-5.14 kernel config: https://syzkaller.appspot.com/x/.config?x=c4b9715112a24a2b dashboard link: https://syzkaller.appspot.com/bug?extid=ba6fcd859210f4e9e109 compiler: