Re: [PATCH v2] mips: mm: Call rcutree_report_cpu_starting() even earlier

[Stefan Wiehler <stefan.wiehler@nokia.com>]

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Hi Maciej,

>  The Broadcom SiByte SB-1 core I have tried to reproduce this issue with
> (in a dual SMP configuration) is a MIPSr1 CPU and does not have the TLBINV
> instruction or the EHINV feature and neither is architectually allowed to.
> I have used it as one of the test platforms for 64-bit r4k_tlb_uniquify()
> verification and it is guaranteed to call this function.

Understand; unfortunately I have only access to the Cavium Octeon II and
QEMU, so I cannot investigate by myself here.

>  I'll see what I can do, but it'll take a while, so maybe someone else can
> try and reproduce it with their setup before I can get to it?

No worries, I understand that you are busy; nevertheless, if you or
anybody else wants to jump in to reproduce with QEMU, it is quiet
straightforward: Compile Linux 7.0.0-rc7 with the attached defconfig and
run it with QEMU as follows:

$ qemu-system-mips64 -cpu I6400 -smp 2 -kernel vmlinux -nographic

Kind regards,

Stefan

[-- Attachment #2: defconfig --]
[-- Type: text/plain, Size: 8261 bytes --]

CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_RCU_EXPERT=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_NAMESPACES=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_MIPS_MALTA=y
CONFIG_CPU_MIPS64_R6=y
CONFIG_64BIT=y
CONFIG_MIPS_CPS=y
CONFIG_NR_CPUS=2
CONFIG_HZ_100=y
CONFIG_PAGE_SIZE_16KB=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_COMPAT_BRK is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=y
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_NET_IPIP=m
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
CONFIG_IP_SCTP=m
CONFIG_BRIDGE=m
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_ATALK=m
CONFIG_PHONET=m
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_CFG80211=m
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y
CONFIG_RFKILL=m
CONFIG_PCI=y
CONFIG_DEVTMPFS=y
CONFIG_CONNECTOR=m
CONFIG_MTD=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_OOPS=m
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_FD=m
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_ATA_OVER_ETH=m
CONFIG_RAID_ATTRS=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_FC_ATTRS=m
CONFIG_ISCSI_TCP=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_ACARD=m
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_NETDEVICES=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
CONFIG_EQUALIZER=m
CONFIG_IFB=m
CONFIG_MACVLAN=m
CONFIG_TUN=m
CONFIG_VETH=m
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_PCNET32=y
CONFIG_CHELSIO_T3=m
CONFIG_AX88796=m
CONFIG_NETXEN_NIC=m
CONFIG_TC35815=m
CONFIG_BROADCOM_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_ICPLUS_PHY=m
CONFIG_LXT_PHY=m
CONFIG_MARVELL_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_IPW2100=m
CONFIG_IPW2100_MONITOR=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_PIIX4_POWEROFF=y
CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_CIRRUS=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_HID=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_CMOS=y
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_QUOTA=y
CONFIG_QFMT_V2=y
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_AFFS_FS=m
CONFIG_HFS_FS=m
CONFIG_HFSPLUS_FS=m
CONFIG_BEFS_FS=m
CONFIG_BFS_FS=m
CONFIG_EFS_FS=m
CONFIG_JFFS2_FS=m
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
CONFIG_JFFS2_RUBIN=y
CONFIG_CRAMFS=m
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
CONFIG_ROMFS_FS=m
CONFIG_UFS_FS=m
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_XCBC=m
CONFIG_FRAME_WARN=1280
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU_LIST=y