From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3sv8V82ZLxzDsrf for ; Wed, 12 Oct 2016 20:59:44 +1100 (AEDT) From: Michael Ellerman To: Marcin Nowakowski , linux-kernel@vger.kernel.org Cc: linux-api@vger.kernel.org, luto@amacapital.net, rostedt@goodmis.org, Marcin Nowakowski , Ingo Molnar , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v3 08/11] powerpc/tracing: fix compat syscall handling In-Reply-To: <1476182576-15247-9-git-send-email-marcin.nowakowski@imgtec.com> References: <1476182576-15247-1-git-send-email-marcin.nowakowski@imgtec.com> <1476182576-15247-9-git-send-email-marcin.nowakowski@imgtec.com> Date: Wed, 12 Oct 2016 20:59:42 +1100 Message-ID: <87zim951m9.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Marcin Nowakowski writes: > Adapt the code to make use of new syscall handling interface > > Signed-off-by: Marcin Nowakowski > Cc: Steven Rostedt > Cc: Ingo Molnar > Cc: Benjamin Herrenschmidt > Cc: Paul Mackerras > Cc: Michael Ellerman > Cc: linuxppc-dev@lists.ozlabs.org > --- > arch/powerpc/include/asm/ftrace.h | 11 +++++++++++ > arch/powerpc/kernel/ftrace.c | 4 ++++ I went to test this and noticed the exit and enter events appear to be reversed in time? (your series on top of 24532f768121) ls-4221 [003] .... 83.766113: compat_sys_rt_sigprocmask -> 0x2 ls-4221 [003] .... 83.766137: compat_sys_rt_sigprocmask(how: 2, nset: 1010db30, oset: 0, sigsetsize: 8) ls-4221 [003] .... 83.766175: compat_sys_rt_sigaction -> 0x14 ls-4221 [003] .... 83.766175: compat_sys_rt_sigaction(sig: 14, act: ffbd33c4, oact: ffbd3338, sigsetsize: 8) ls-4221 [003] .... 83.766177: compat_sys_rt_sigaction -> 0x15 ls-4221 [003] .... 83.766177: compat_sys_rt_sigaction(sig: 15, act: ffbd33c4, oact: ffbd3338, sigsetsize: 8) ls-4221 [003] .... 83.766178: compat_sys_rt_sigaction -> 0x16 ls-4221 [003] .... 83.766178: compat_sys_rt_sigaction(sig: 16, act: ffbd33d4, oact: ffbd3348, sigsetsize: 8) ls-4221 [003] .... 83.766179: sys_setpgid -> 0x107d ls-4221 [003] .... 83.766179: sys_setpgid(pid: 107d, pgid: 107d) ls-4221 [003] .... 83.766180: compat_sys_rt_sigprocmask -> 0x0 ls-4221 [003] .... 83.766181: compat_sys_rt_sigprocmask(how: 0, nset: ffbd34b0, oset: ffbd3530, sigsetsize: 8) ls-4221 [003] .... 83.766186: compat_sys_ioctl -> 0xff ls-4221 [003] .... 83.766187: compat_sys_ioctl(fd: ff, cmd: 80047476, arg32: ffbd3488) ls-4221 [003] .... 83.766188: compat_sys_rt_sigprocmask -> 0x2 ls-4221 [003] .... 83.766189: compat_sys_rt_sigprocmask(how: 2, nset: ffbd3530, oset: 0, sigsetsize: 8) ls-4221 [003] .... 83.766189: sys_close -> 0x4 ls-4221 [003] .... 83.766190: sys_close(fd: 4) ls-4221 [003] .... 83.766191: sys_read -> 0x3 ls-4221 [003] .... 83.766191: sys_read(fd: 3, buf: ffbd35dc, count: 1) ls-4221 [003] .... 83.766235: sys_close -> 0x3 ls-4221 [003] .... 83.766235: sys_close(fd: 3) cheers