From: Steven Rostedt <rostedt@goodmis.org>
To: Anatoly Pugachev <matorola@gmail.com>
Cc: Linux Kernel list <linux-kernel@vger.kernel.org>,
Sparc kernel list <sparclinux@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>
Subject: Re: [sparc64] ftrace: kernel startup-tests unaligned access
Date: Mon, 14 Dec 2020 11:15:12 -0500 [thread overview]
Message-ID: <20201214111512.415717ac@gandalf.local.home> (raw)
In-Reply-To: <CADxRZqzXQRYgKc=y-KV=S_yHL+Y8Ay2mh5ezeZUnpRvg+syWKw@mail.gmail.com>
On Mon, 14 Dec 2020 18:59:02 +0300
Anatoly Pugachev <matorola@gmail.com> wrote:
> Hello!
>
> Enabled ftrace startup tests on a sparc64 test VM/LDOM:
>
> $ diff -u <(gzip -dc ~/dmesg/config-5.10.0.gz) <(gzip -dc /proc/config.gz)
> --- /dev/fd/63 2020-12-14 16:19:38.239372599 +0300
> +++ /dev/fd/62 2020-12-14 16:19:38.235372433 +0300
> @@ -2842,7 +2842,10 @@
> # CONFIG_TRACEPOINT_BENCHMARK is not set
> # CONFIG_RING_BUFFER_BENCHMARK is not set
> # CONFIG_TRACE_EVAL_MAP_FILE is not set
> -# CONFIG_FTRACE_STARTUP_TEST is not set
> +CONFIG_FTRACE_SELFTEST=y
> +CONFIG_FTRACE_STARTUP_TEST=y
> +CONFIG_EVENT_TRACE_STARTUP_TEST=y
> +# CONFIG_EVENT_TRACE_TEST_SYSCALLS is not set
> # CONFIG_RING_BUFFER_STARTUP_TEST is not set
> # CONFIG_PREEMPTIRQ_DELAY_TEST is not set
> # CONFIG_KPROBE_EVENT_GEN_TEST is not set
>
>
> Got the following results with kernel boot logs:
>
> Dec 14 13:48:15 kernel: clocksource: jiffies: mask: 0xffffffff
> max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
> Dec 14 13:48:15 kernel: futex hash table entries: 65536 (order: 9,
> 4194304 bytes, linear)
> Dec 14 13:48:15 kernel: Running postponed tracer tests:
> Dec 14 13:48:15 kernel: Testing tracer function:
> Dec 14 13:48:15 kernel: Kernel unaligned access at TPC[552a20]
> trace_function+0x40/0x140
> Dec 14 13:48:15 kernel: Kernel unaligned access at TPC[552a24]
> trace_function+0x44/0x140
> Dec 14 13:48:15 kernel: Kernel unaligned access at TPC[552a20]
> trace_function+0x40/0x140
> Dec 14 13:48:15 kernel: Kernel unaligned access at TPC[552a24]
> trace_function+0x44/0x140
> Dec 14 13:48:15 kernel: Kernel unaligned access at TPC[552a20]
> trace_function+0x40/0x140
Does sparc64 require 8 byte alignment for 8 byte words?
-- Steve
next prev parent reply other threads:[~2020-12-14 16:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-14 15:59 Anatoly Pugachev
2020-12-14 16:15 ` Steven Rostedt [this message]
2020-12-14 16:26 ` Steven Rostedt
2020-12-14 17:12 ` Anatoly Pugachev
2020-12-14 16:28 ` Jessica Clarke
2020-12-14 16:31 ` Steven Rostedt
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