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[71.184.117.43]) by smtp.gmail.com with ESMTPSA id j194sm1367615qke.83.2019.12.18.19.58.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Dec 2019 19:58:24 -0800 (PST) From: Qian Cai Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.40.2.2.4\)) Subject: "ftrace: Rework event_create_dir()" triggers boot error messages Message-Id: <0FA8C6E3-D9F5-416D-A1B0-5E4CD583A101@lca.pw> Date: Wed, 18 Dec 2019 22:58:23 -0500 To: Peter Zijlstra X-Mailer: Apple Mail (2.3608.40.2.2.4) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Will Deacon , Linux Kernel Mailing List , "Steven Rostedt \(VMware\)" , Alexei Starovoitov , clang-built-linux@googlegroups.com, Catalin Marinas , linuxppc-dev , Ingo Molnar , linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The linux-next commit "ftrace: Rework event_create_dir()=E2=80=9D [1] = triggers boot warnings for Clang-build (Clang version 8.0.1) kernels (reproduced on both arm64 = and powerpc). Reverted it (with trivial conflict fixes) on the top of today=E2=80=99s = linux-next fixed the issue. configs: https://raw.githubusercontent.com/cailca/linux-mm/master/arm64.config https://raw.githubusercontent.com/cailca/linux-mm/master/powerpc.config [1] https://lore.kernel.org/lkml/20191111132458.342979914@infradead.org/ [ 115.799327][ T1] Registered efivars operations [ 115.849770][ T1] clocksource: Switched to clocksource = arch_sys_counter [ 115.901145][ T1] Could not initialize trace point = events/sys_enter_rt_sigreturn [ 115.908854][ T1] Could not create directory for event = sys_enter_rt_sigreturn [ 115.998949][ T1] Could not initialize trace point = events/sys_enter_restart_syscall [ 116.006802][ T1] Could not create directory for event = sys_enter_restart_syscall [ 116.062702][ T1] Could not initialize trace point = events/sys_enter_getpid [ 116.069828][ T1] Could not create directory for event = sys_enter_getpid [ 116.078058][ T1] Could not initialize trace point = events/sys_enter_gettid [ 116.085181][ T1] Could not create directory for event = sys_enter_gettid [ 116.093405][ T1] Could not initialize trace point = events/sys_enter_getppid [ 116.100612][ T1] Could not create directory for event = sys_enter_getppid [ 116.108989][ T1] Could not initialize trace point = events/sys_enter_getuid [ 116.116058][ T1] Could not create directory for event = sys_enter_getuid [ 116.124250][ T1] Could not initialize trace point = events/sys_enter_geteuid [ 116.131457][ T1] Could not create directory for event = sys_enter_geteuid [ 116.139840][ T1] Could not initialize trace point = events/sys_enter_getgid [ 116.146908][ T1] Could not create directory for event = sys_enter_getgid [ 116.155163][ T1] Could not initialize trace point = events/sys_enter_getegid [ 116.162370][ T1] Could not create directory for event = sys_enter_getegid [ 116.178015][ T1] Could not initialize trace point = events/sys_enter_setsid [ 116.185138][ T1] Could not create directory for event = sys_enter_setsid [ 116.269307][ T1] Could not initialize trace point = events/sys_enter_sched_yield [ 116.276811][ T1] Could not create directory for event = sys_enter_sched_yield [ 116.527652][ T1] Could not initialize trace point = events/sys_enter_munlockall [ 116.535126][ T1] Could not create directory for event = sys_enter_munlockall [ 116.622096][ T1] Could not initialize trace point = events/sys_enter_vhangup [ 116.629307][ T1] Could not create directory for event = sys_enter_vhangup [ 116.783867][ T1] Could not initialize trace point = events/sys_enter_sync [ 116.790819][ T1] Could not create directory for event = sys_enter_sync [ 117.723402][ T1] pnp: PnP ACPI init [ 117.736379][ T1] system 00:00: [mem 0x30000000-0x3fffffff window] = could not be reserved [ 126.020353][ T1] pnp: PnP ACPI: found 1 devices [ 126.093919][ T1] NET: Registered protocol family 2 [ 126.180007][ T1] tcp_listen_portaddr_hash hash table entries: = 65536 (order: 6, 4718592 bytes, vmalloc) [ 126.206510][ T1] TCP established hash table entries: 524288 = (order: 6, 4194304 bytes, vmalloc) [ 126.227766][ T1] TCP bind hash table entries: 65536 (order: 6, = 4194304 bytes, vmalloc) [ 126.240146][ T1] TCP: Hash tables configured (established 524288 = bind 65536)=