Date: Tue, 17 Feb 2015 07:52:51 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r278883 - head/sys/dev/usb/controller Message-ID: <201502170752.t1H7qp18056515@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: hselasky Date: Tue Feb 17 07:52:50 2015 New Revision: 278883 URL: https://svnweb.freebsd.org/changeset/base/278883 Log: Try to resolve infinite interrupts by clearing an undocumented interrupt status bit. According to the UHCI controller specification the host controller halted interrupt is non-maskable. PR: 156596 Tested by: adrian @ MFC after: 1 week Modified: head/sys/dev/usb/controller/uhci.c Modified: head/sys/dev/usb/controller/uhci.c ============================================================================== --- head/sys/dev/usb/controller/uhci.c Tue Feb 17 05:36:16 2015 (r278882) +++ head/sys/dev/usb/controller/uhci.c Tue Feb 17 07:52:50 2015 (r278883) @@ -1476,7 +1476,8 @@ uhci_interrupt(uhci_softc_t *sc) UHCI_STS_USBEI | UHCI_STS_RD | UHCI_STS_HSE | - UHCI_STS_HCPE); + UHCI_STS_HCPE | + UHCI_STS_HCH); if (status == 0) { /* nothing to acknowledge */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201502170752.t1H7qp18056515>