Date: Thu, 24 Sep 2015 12:26:57 +0200 From: Svatopluk Kraus <onwahe@gmail.com> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Cc: Hans Petter Selasky <hps@selasky.org>, Andreas Schwarz <freebsd.asc@strcmp.org> Subject: Re: DWC OTG TX path optimisation for 11-current Message-ID: <CAFHCsPUgOwCTeqLUa8dZygQaJ%2BdbR4cbXNg_C_cv%2B6AagvwQMg@mail.gmail.com> In-Reply-To: <46e495e484.66704618@mail.schwarzes.net> References: <55A7D8CE.4020809@selasky.org> <CAHNYxxMp9jGDbV-5=-cE6daR-O3eN5pdvO1s-=QfX=A9XYqYmA@mail.gmail.com> <55B23276.8090703@selasky.org> <CAHNYxxNc9uB62hHEv1PM9PcsGgUs=zsvNgatqLD0p%2BiiDA3Aiw@mail.gmail.com> <55B73113.2020308@selasky.org> <CAFHCsPVaPZpqXLS7OApa=Xz5VLnLjVpV5dYV8Pn2uHh1Lcz7Tg@mail.gmail.com> <55B8AB76.7030603@selasky.org> <CAFHCsPUMaYEwJsaGUFuw9yZi_5bmraSBsOYpRWvSeuebpXBJUA@mail.gmail.com> <55B8B297.1010008@selasky.org> <CAFHCsPVGLs8j6LAV%2Bg4rP_ueTOd8pUOupYFGvmgC3XGcJC720Q@mail.gmail.com> <20150729154516.GH78154@funkthat.com> <55B8F5EC.2050908@selasky.org> <46ad096c958.1a82a175@mail.schwarzes.net> <55B9C3E2.5040501@selasky.org> <46ae815c7c3.447237c8@mail.schwarzes.net> <46aece00b53.3c1cdc1f@mail.schwarzes.net> <55BB2A5F.9000502@selasky.org> <46baa16c4ce.6efd29ef@mail.schwarzes.net> <55CF31A1.5080205@selasky.org> <46ce372c895.20050775@mail.schwarzes.net> <46d0a4441bb.41f6f91d@mail.schwarzes.net> <55DD5C0A.2050401@selasky.org> <CAFHCsPVTpnd2RB4d0NvLRf9WniSkBPajJYABoPOuS4NKo%2BZ7PA@mail.gmail.com> <46d8b55830c.48a059ec@mail.schwarzes.net> <46e495e484.66704618@mail.schwarzes.net>
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Hi, I finally found a way how to get something what could be analyzed considering the problem with smcs warnings, slow console response, and other oddities. And it was Michal Meloun who figured out how the problem comes up. He was so enthusiastic and fast that he got me no chance, no chance at all to figure it out myself. ;)) Thanks goes to Bob Prohaska too who pointed me to stress2 which triggers the problem even with all KTR classes compiled in kernel. The fix is here: https://reviews.freebsd.org/D3722 Svata
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