Date: Thu, 13 Mar 2014 19:15:26 -0700 From: Rui Paulo <rpaulo@FreeBSD.org> To: Hans Petter Selasky <hselasky@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r262972 - head/sys/dev/usb/input Message-ID: <D62898EB-F179-416B-A481-68604873477C@FreeBSD.org> In-Reply-To: <201403100852.s2A8qUdC045704@svn.freebsd.org> References: <201403100852.s2A8qUdC045704@svn.freebsd.org>
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On 10 Mar 2014, at 01:52, Hans Petter Selasky <hselasky@freebsd.org> = wrote: > Author: hselasky > Date: Mon Mar 10 08:52:30 2014 > New Revision: 262972 > URL: http://svnweb.freebsd.org/changeset/base/262972 >=20 > Log: > Ignore USB keyboard driver calls from critical sections. >=20 > Reported by: Oliver Pinter <oliver.pntr@gmail.com> > MFC after: 1 week >=20 > Modified: > head/sys/dev/usb/input/ukbd.c >=20 > Modified: head/sys/dev/usb/input/ukbd.c > = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > --- head/sys/dev/usb/input/ukbd.c Mon Mar 10 06:41:48 2014 = (r262971) > +++ head/sys/dev/usb/input/ukbd.c Mon Mar 10 08:52:30 2014 = (r262972) > @@ -1909,6 +1909,12 @@ ukbd_ioctl(keyboard_t *kbd, u_long cmd,=20 > int result; >=20 > /* > + * XXX Check of someone is calling us from a critical section: > + */ > + if (curthread->td_critnest !=3D 0) > + return (EDEADLK); Shouldn't this panic? -- Rui Paulo
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