Date: Tue, 17 Sep 2013 12:41:09 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: Hans Petter Selasky <hans.petter.selasky@bitfrost.no> Cc: Harald Schmalzbauer <h.schmalzbauer@omnilan.de>, FreeBSD Stable <freebsd-stable@FreeBSD.org>, freebsd-usb@freebsd.org Subject: Re: umcs (4-Port-USB-serial) triggering way too much ehci IRQs Message-ID: <1943047228.20130917124109@serebryakov.spb.ru> In-Reply-To: <zarafa.5237e529.2bc6.08fde6eb34c27a87@mail.lockless.no> References: <52372DBA.6020703@omnilan.de> <zarafa.5237e529.2bc6.08fde6eb34c27a87@mail.lockless.no>
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Hello, Hans. You wrote 17 =D1=81=D0=B5=D0=BD=D1=82=D1=8F=D0=B1=D1=80=D1=8F 2013 =D0=B3.,= 9:14:17: HPS> Check using usbdump -i usbusX -f Y -s 65536 -vvv HPS> what is going on. Maybe some USB transfers are returning zero length d= ata from the chip. After closing port I disable all interrupts in chip, I've checked this (it was my first thought: ``I forget to disable internal interrupts on device close''), so, theoretically, it should stop spam system with interrupts... --=20 // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
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