ci2 starts bisection 2024-05-19 07:58:01.444653094 +0000 UTC m=+115053.980701651 bisecting fixing commit since 6741e066ec7633450d3186946035c1f80c4226b8 building syzkaller on 4320ec32bd44793e077a482003409ae791e1dfea ensuring issue is reproducible on original commit 6741e066ec7633450d3186946035c1f80c4226b8 testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25a57fe3a6af092495c412b6f0762fa22d7bae32aea931a993ed5b34965a3f0b all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e104bbbcfa93674f90d063f436bba416c69fc4d43b76deef9c9267cdce3663b7 all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=3820 full=7457 leaves diff=1990 split chunks (needed=false): <1990> split chunk #0 of len 1990 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1bd8c6e7dacba00654cc4f1c55c031021b737957304f1241603812d8aa4543c3 all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e0113afedd4eee934428abeb128a180884e12b2ec8b3fb79312c8b6951e7210 all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c964e0dfa077ca2b3ae4a2795c2d54c3a534ab2b52d0fd59b2f1a41dd2ea8862 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09660c3f05fbe59b0c11024e7985e44bc844b72b99534c73775ccf24531fd594 all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 6741e066ec7633450d3186946035c1f80c4226b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4a5deb5430b213e2d185511d97d8856dc6b04290919e3383b2cfd9070a7c6217 all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] the chunk can be dropped minimized to 398 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LRU_GEN LRU_GEN_ENABLED LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MITIGATION_RFDS MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI] disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed determining the merge base between 6741e066ec7633450d3186946035c1f80c4226b8 and 0450d2083be6bdcd18c9535ac50c55266499b2df 830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0edfeed233189c6693c05f81ef6477d5b13fee48242bbd6a7d67129136c6c2ea all runs: crashed: possible deadlock in sch_direct_xmit representative crash: possible deadlock in sch_direct_xmit, types: [LOCKDEP] testing current HEAD 0450d2083be6bdcd18c9535ac50c55266499b2df testing commit 0450d2083be6bdcd18c9535ac50c55266499b2df gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17283103daeda19d4712b250acc4289cd4c23fa94470a7c2c2a1e19600d9044f all runs: OK false negative chance: 0.000 # git bisect start 0450d2083be6bdcd18c9535ac50c55266499b2df 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 Bisecting: 68983 revisions left to test after this (roughly 16 steps) [53ea7f624fb91074c2f9458832ed74975ee5d64c] Merge tag 'xfs-6.6-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 53ea7f624fb91074c2f9458832ed74975ee5d64c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 11bb4f4f6d7cd39a27e02057eb2b9e0a9efc6ca959488d59dad85892015c3fe6 all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 53ea7f624fb91074c2f9458832ed74975ee5d64c Bisecting: 34502 revisions left to test after this (roughly 15 steps) [5bad490858c3ebdbb47e622e8f9049f828d2abba] Merge tag 'soc-defconfig-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 5bad490858c3ebdbb47e622e8f9049f828d2abba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0e1f25937bd73964cc83d75ec4f7453b924b053df9f2b687f9aaccb95ea5f1ad all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 5bad490858c3ebdbb47e622e8f9049f828d2abba Bisecting: 16599 revisions left to test after this (roughly 14 steps) [480e035fc4c714fb5536e64ab9db04fedc89e910] Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 53ea7f624fb91074c2f9458832ed74975ee5d64c crashed and is reachable testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b6c63e2311c8277a7ac8f00c6fd3498a94419cc155d23d3b03c3d6eb91e033f1 all runs: OK false negative chance: 0.000 # git bisect bad 480e035fc4c714fb5536e64ab9db04fedc89e910 Bisecting: 8957 revisions left to test after this (roughly 13 steps) [538808694c371e2db8f3b49d299d5f25198e7c17] Merge branch 'bnxt_en-ntuple-and-rss-updates' determine whether the revision contains the guilty commit revision 5bad490858c3ebdbb47e622e8f9049f828d2abba crashed and is reachable testing commit 538808694c371e2db8f3b49d299d5f25198e7c17 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 793cfb43a77baab4a0e10404519bbd07c9885552f1228359bf855842bffbd616 all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 538808694c371e2db8f3b49d299d5f25198e7c17 Bisecting: 4672 revisions left to test after this (roughly 12 steps) [1f440397665f4241346e4cc6d93f8b73880815d1] Merge tag 'docs-6.9' of git://git.lwn.net/linux determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 1f440397665f4241346e4cc6d93f8b73880815d1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cbea46c2150b04b16084daac470c74616ae5c7d08f4aa344e54ce1c7934ea43a all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 1f440397665f4241346e4cc6d93f8b73880815d1 Bisecting: 2319 revisions left to test after this (roughly 11 steps) [aeb152910a7aecabde5c5f0477a08b397e94059c] Merge tag 'pwm/for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux determine whether the revision contains the guilty commit revision 538808694c371e2db8f3b49d299d5f25198e7c17 crashed and is reachable testing commit aeb152910a7aecabde5c5f0477a08b397e94059c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b29977314b32280c3071dd90bc102693f5fb99a6210e7a777df8da8d3db11f8e all runs: OK false negative chance: 0.000 # git bisect bad aeb152910a7aecabde5c5f0477a08b397e94059c Bisecting: 1175 revisions left to test after this (roughly 10 steps) [6702d60d3c2eae086fbf85e09598ccf0c46b1d00] Merge branch 'remove-page-frag-implementation-in-vhost_net' determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 6702d60d3c2eae086fbf85e09598ccf0c46b1d00 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 85ff52f217de85bc9cfc092a6c1621ba3e282a90bcc71a49a5c39982a6099df0 all runs: OK false negative chance: 0.000 # git bisect bad 6702d60d3c2eae086fbf85e09598ccf0c46b1d00 Bisecting: 543 revisions left to test after this (roughly 9 steps) [e199c4ba8260ba845d9faf972d0718562cae042a] Merge tag 'wireless-next-2024-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit e199c4ba8260ba845d9faf972d0718562cae042a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c46bf8e81c9e4f18a002ae6a5dc7a4b36a881af9f6370561d37b955ff002d74 all runs: OK false negative chance: 0.000 # git bisect bad e199c4ba8260ba845d9faf972d0718562cae042a Bisecting: 316 revisions left to test after this (roughly 8 steps) [4f0beeefcce8ad1035d063a012db6cf510aa1ed1] wifi: rtw89: chan: add sub-entity swap function to cover replacing determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 4f0beeefcce8ad1035d063a012db6cf510aa1ed1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 003089dddb25dc15d289341b5909e5c63b26b178625f71f4a0b1fd926260db8c all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 4f0beeefcce8ad1035d063a012db6cf510aa1ed1 Bisecting: 158 revisions left to test after this (roughly 7 steps) [3738d710af51286d3814332343d10b0c745eaa12] configs/debug: add NET debug config determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 3738d710af51286d3814332343d10b0c745eaa12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a606d6836c422668812645c0fd3cf3c1f96e5d5b23c9819e7ff5d7c8acb2a3d6 all runs: OK false negative chance: 0.000 # git bisect bad 3738d710af51286d3814332343d10b0c745eaa12 Bisecting: 78 revisions left to test after this (roughly 6 steps) [be51ed104ba9929c741afb718ef7198dbcecef94] r8169: add LED support for RTL8125/RTL8126 determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit be51ed104ba9929c741afb718ef7198dbcecef94 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 061f45b664ce0689576f8018c539ac8f90badb8713c0955b0bcb64735a3e3172 all runs: OK false negative chance: 0.000 # git bisect bad be51ed104ba9929c741afb718ef7198dbcecef94 Bisecting: 39 revisions left to test after this (roughly 5 steps) [33f4336cbd32c21717b60d013693a0bd51a27db6] net: dsa: realtek: drop cleanup from realtek_ops determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 33f4336cbd32c21717b60d013693a0bd51a27db6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0a146119caac88b4231b192958213763d1734adaa540f6e70491bcf8059304c7 all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 33f4336cbd32c21717b60d013693a0bd51a27db6 Bisecting: 19 revisions left to test after this (roughly 4 steps) [78c3253f27e579f7f3a1f5c0cb8266693a7b4f41] net: use synchronize_rcu_expedited in cleanup_net() determine whether the revision contains the guilty commit revision 5bad490858c3ebdbb47e622e8f9049f828d2abba crashed and is reachable testing commit 78c3253f27e579f7f3a1f5c0cb8266693a7b4f41 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 864eedc4ad6af6ea9147bb3965e96413f6127c804abf7bd39b14a23738a0f89d all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 78c3253f27e579f7f3a1f5c0cb8266693a7b4f41 Bisecting: 9 revisions left to test after this (roughly 3 steps) [f383ced24d6ae6c1989394d052d3109b9d645f11] vlan: use xarray iterator to implement /proc/net/vlan/config determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit f383ced24d6ae6c1989394d052d3109b9d645f11 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd0a8078fbe1c9d70e69a8215bd34c20e6e52f747fc0d20121a4af2e668646b6 all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good f383ced24d6ae6c1989394d052d3109b9d645f11 Bisecting: 4 revisions left to test after this (roughly 2 steps) [0bef512012b1cd8820f0c9ec80e5f8ceb43fdd59] net: add netdev_lockdep_set_classes() to virtual drivers determine whether the revision contains the guilty commit revision 33f4336cbd32c21717b60d013693a0bd51a27db6 crashed and is reachable testing commit 0bef512012b1cd8820f0c9ec80e5f8ceb43fdd59 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67ec47ed367968d3f5ce1c604e35bcd7f904e7f229c933125c854d08c056be1a all runs: OK false negative chance: 0.000 # git bisect bad 0bef512012b1cd8820f0c9ec80e5f8ceb43fdd59 Bisecting: 2 revisions left to test after this (roughly 1 step) [88c9d07b96bb02108ef786f574cd0e730ebab678] Merge branch 'net-use-net-dev_by_index-in-two-places' determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 88c9d07b96bb02108ef786f574cd0e730ebab678 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b94e25103690e7fe28ea94a87db0977e9d019e0281d81e405d5702d66e6ac6e1 all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good 88c9d07b96bb02108ef786f574cd0e730ebab678 Bisecting: 0 revisions left to test after this (roughly 1 step) [c74e1039912e63b91e8697796e321d157b44692e] net: bridge: use netdev_lockdep_set_classes() determine whether the revision contains the guilty commit revision 78c3253f27e579f7f3a1f5c0cb8266693a7b4f41 crashed and is reachable testing commit c74e1039912e63b91e8697796e321d157b44692e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f63fcd466ffe7dfe3e352b9d3a59f79c215363e7f00d649a17230ddfe272955a all runs: crashed: possible deadlock in __dev_queue_xmit representative crash: possible deadlock in __dev_queue_xmit, types: [LOCKDEP] # git bisect good c74e1039912e63b91e8697796e321d157b44692e 0bef512012b1cd8820f0c9ec80e5f8ceb43fdd59 is the first bad commit commit 0bef512012b1cd8820f0c9ec80e5f8ceb43fdd59 Author: Eric Dumazet Date: Mon Feb 12 14:07:00 2024 +0000 net: add netdev_lockdep_set_classes() to virtual drivers Based on a syzbot report, it appears many virtual drivers do not yet use netdev_lockdep_set_classes(), triggerring lockdep false positives. WARNING: possible recursive locking detected 6.8.0-rc4-next-20240212-syzkaller #0 Not tainted syz-executor.0/19016 is trying to acquire lock: ffff8880162cb298 (_xmit_ETHER#2){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff8880162cb298 (_xmit_ETHER#2){+.-.}-{2:2}, at: __netif_tx_lock include/linux/netdevice.h:4452 [inline] ffff8880162cb298 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x1c4/0x5f0 net/sched/sch_generic.c:340 but task is already holding lock: ffff8880223db4d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff8880223db4d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: __netif_tx_lock include/linux/netdevice.h:4452 [inline] ffff8880223db4d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x1c4/0x5f0 net/sched/sch_generic.c:340 other info that might help us debug this: Possible unsafe locking scenario: CPU0 lock(_xmit_ETHER#2); lock(_xmit_ETHER#2); *** DEADLOCK *** May be due to missing lock nesting notation 9 locks held by syz-executor.0/19016: #0: ffffffff8f385208 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f385208 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6603 #1: ffffc90000a08c00 ((&in_dev->mr_ifc_timer)){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x600 kernel/time/timer.c:1697 #2: ffffffff8e131520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #2: ffffffff8e131520 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #2: ffffffff8e131520 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x45f/0x1360 net/ipv4/ip_output.c:228 #3: ffffffff8e131580 (rcu_read_lock_bh){....}-{1:2}, at: local_bh_disable include/linux/bottom_half.h:20 [inline] #3: ffffffff8e131580 (rcu_read_lock_bh){....}-{1:2}, at: rcu_read_lock_bh include/linux/rcupdate.h:802 [inline] #3: ffffffff8e131580 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x2c4/0x3b10 net/core/dev.c:4284 #4: ffff8880416e3258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: spin_trylock include/linux/spinlock.h:361 [inline] #4: ffff8880416e3258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: qdisc_run_begin include/net/sch_generic.h:195 [inline] #4: ffff8880416e3258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_xmit_skb net/core/dev.c:3771 [inline] #4: ffff8880416e3258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_queue_xmit+0x1262/0x3b10 net/core/dev.c:4325 #5: ffff8880223db4d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #5: ffff8880223db4d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: __netif_tx_lock include/linux/netdevice.h:4452 [inline] #5: ffff8880223db4d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x1c4/0x5f0 net/sched/sch_generic.c:340 #6: ffffffff8e131520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #6: ffffffff8e131520 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #6: ffffffff8e131520 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x45f/0x1360 net/ipv4/ip_output.c:228 #7: ffffffff8e131580 (rcu_read_lock_bh){....}-{1:2}, at: local_bh_disable include/linux/bottom_half.h:20 [inline] #7: ffffffff8e131580 (rcu_read_lock_bh){....}-{1:2}, at: rcu_read_lock_bh include/linux/rcupdate.h:802 [inline] #7: ffffffff8e131580 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x2c4/0x3b10 net/core/dev.c:4284 #8: ffff888014d9d258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: spin_trylock include/linux/spinlock.h:361 [inline] #8: ffff888014d9d258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: qdisc_run_begin include/net/sch_generic.h:195 [inline] #8: ffff888014d9d258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_xmit_skb net/core/dev.c:3771 [inline] #8: ffff888014d9d258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_queue_xmit+0x1262/0x3b10 net/core/dev.c:4325 stack backtrace: CPU: 1 PID: 19016 Comm: syz-executor.0 Not tainted 6.8.0-rc4-next-20240212-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain+0x15c1/0x58e0 kernel/locking/lockdep.c:3856 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] __netif_tx_lock include/linux/netdevice.h:4452 [inline] sch_direct_xmit+0x1c4/0x5f0 net/sched/sch_generic.c:340 __dev_xmit_skb net/core/dev.c:3784 [inline] __dev_queue_xmit+0x1912/0x3b10 net/core/dev.c:4325 neigh_output include/net/neighbour.h:542 [inline] ip_finish_output2+0xe66/0x1360 net/ipv4/ip_output.c:235 iptunnel_xmit+0x540/0x9b0 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x20ee/0x2960 net/ipv4/ip_tunnel.c:831 erspan_xmit+0x9de/0x1460 net/ipv4/ip_gre.c:720 __netdev_start_xmit include/linux/netdevice.h:4989 [inline] netdev_start_xmit include/linux/netdevice.h:5003 [inline] xmit_one net/core/dev.c:3555 [inline] dev_hard_start_xmit+0x242/0x770 net/core/dev.c:3571 sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3784 [inline] __dev_queue_xmit+0x1912/0x3b10 net/core/dev.c:4325 neigh_output include/net/neighbour.h:542 [inline] ip_finish_output2+0xe66/0x1360 net/ipv4/ip_output.c:235 igmpv3_send_cr net/ipv4/igmp.c:723 [inline] igmp_ifc_timer_expire+0xb71/0xd90 net/ipv4/igmp.c:813 call_timer_fn+0x17e/0x600 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x621/0x830 kernel/time/timer.c:2038 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2051 __do_softirq+0x2bc/0x943 kernel/softirq.c:554 invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1076 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:resched_offsets_ok kernel/sched/core.c:10127 [inline] RIP: 0010:__might_resched+0x16f/0x780 kernel/sched/core.c:10142 Code: 00 4c 89 e8 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 48 89 44 24 38 0f b6 04 10 84 c0 0f 85 87 04 00 00 41 8b 45 00 c1 e0 08 <01> d8 44 39 e0 0f 85 d6 00 00 00 44 89 64 24 1c 48 8d bc 24 a0 00 RSP: 0018:ffffc9000ee069e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880296a9e00 RDX: dffffc0000000000 RSI: ffff8880296a9e00 RDI: ffffffff8bfe8fa0 RBP: ffffc9000ee06b00 R08: ffffffff82326877 R09: 1ffff11002b5ad1b R10: dffffc0000000000 R11: ffffed1002b5ad1c R12: 0000000000000000 R13: ffff8880296aa23c R14: 000000000000062a R15: 1ffff92001dc0d44 down_write+0x19/0x50 kernel/locking/rwsem.c:1578 kernfs_activate fs/kernfs/dir.c:1403 [inline] kernfs_add_one+0x4af/0x8b0 fs/kernfs/dir.c:819 __kernfs_create_file+0x22e/0x2e0 fs/kernfs/file.c:1056 sysfs_add_file_mode_ns+0x24a/0x310 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x4f4/0xf20 fs/sysfs/group.c:152 internal_create_groups fs/sysfs/group.c:192 [inline] sysfs_create_groups+0x56/0x120 fs/sysfs/group.c:218 create_dir lib/kobject.c:78 [inline] kobject_add_internal+0x472/0x8d0 lib/kobject.c:240 kobject_add_varg lib/kobject.c:374 [inline] kobject_init_and_add+0x124/0x190 lib/kobject.c:457 netdev_queue_add_kobject net/core/net-sysfs.c:1706 [inline] netdev_queue_update_kobjects+0x1f3/0x480 net/core/net-sysfs.c:1758 register_queue_kobjects net/core/net-sysfs.c:1819 [inline] netdev_register_kobject+0x265/0x310 net/core/net-sysfs.c:2059 register_netdevice+0x1191/0x19c0 net/core/dev.c:10298 bond_newlink+0x3b/0x90 drivers/net/bonding/bond_netlink.c:576 rtnl_newlink_create net/core/rtnetlink.c:3506 [inline] __rtnl_newlink net/core/rtnetlink.c:3726 [inline] rtnl_newlink+0x158f/0x20a0 net/core/rtnetlink.c:3739 rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6606 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3c/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2199 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fc3fa87fa9c Reported-by: syzbot Signed-off-by: Eric Dumazet Link: https://lore.kernel.org/r/20240212140700.2795436-4-edumazet@google.com Signed-off-by: Jakub Kicinski drivers/net/dummy.c | 1 + drivers/net/geneve.c | 1 + drivers/net/loopback.c | 1 + drivers/net/veth.c | 1 + drivers/net/vxlan/vxlan_core.c | 1 + net/ipv4/ip_tunnel.c | 1 + net/ipv6/ip6_gre.c | 2 ++ net/ipv6/ip6_tunnel.c | 1 + net/ipv6/ip6_vti.c | 1 + net/ipv6/sit.c | 1 + 10 files changed, 11 insertions(+) accumulated error probability: 0.00 culprit signature: 67ec47ed367968d3f5ce1c604e35bcd7f904e7f229c933125c854d08c056be1a parent signature: f63fcd466ffe7dfe3e352b9d3a59f79c215363e7f00d649a17230ddfe272955a revisions tested: 26, total time: 4h4m23.6603522s (build: 1h26m57.492677761s, test: 2h27m38.583416366s) first good commit: 0bef512012b1cd8820f0c9ec80e5f8ceb43fdd59 net: add netdev_lockdep_set_classes() to virtual drivers recipients (to): ["edumazet@google.com" "kuba@kernel.org"] recipients (cc): []