linux-kernel - Aw: [PATCH][v2] rtnetlink: add rtnl

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Date:   Tue, 11 May 2021 20:54:01 +0200
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Rocco Yue <rocco.yue@...iatek.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        peterz@...radead.org,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        Peter Enderborg <peter.enderborg@...y.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Vitor Massaru Iha <vitor@...saru.org>,
        Sedat Dilek <sedat.dilek@...il.com>,
        Wei Yang <richard.weiyang@...il.com>,
        Cong Wang <cong.wang@...edance.com>,
        Di Zhu <zhudi21@...wei.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Francis Laniel <laniel_francis@...vacyrequired.com>,
        Roopa Prabhu <roopa@...ulusnetworks.com>,
        Andrii Nakryiko <andrii@...nel.org>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, wsd_upsream@...iatek.com,
        Rocco Yue <rocco.yue@...iatek.com>
Subject: Aw: [PATCH][v2] rtnetlink: add rtnl_lock debug log

> Gesendet: Samstag, 08. Mai 2021 um 10:57 Uhr
> Von: "Rocco Yue" <rocco.yue@...iatek.com>
> Betreff: [PATCH][v2] rtnetlink: add rtnl_lock debug log

> <6>[   40.191481][    C6] rtnetlink: -- rtnl_print_btrace start --
> <6>[   40.191494][    C6] rtnetlink: RfxSender_4[2206][R] hold rtnl_lock
> more than 2 sec, start time: 38181400013
it would be good to have same time-format (seconds.nanosec)

> <6>[   42.181879][ T2206] rtnetlink: rtnl_lock is held by [2206] from
> [38181400013] to [42181875177]
same as above

> +static void rtnl_relase_btrace(void)
should this be release_btrace?

regards Frank