On Thu, 2017-12-28 at 19:17 +0200, Andy Shevchenko wrote: > Hi! > > Experimenting with AtomISP (yes, code is ugly and MSI handling rather > hackish, though...). > > So, with v4.14 base: See additional note below. > > [ 33.639224] atomisp-isp2 0000:00:03.0: Start stream on pad 1 for > asd0 > [ 33.652355] atomisp-isp2 0000:00:03.0: irq:0x20 > [ 33.662456] atomisp-isp2 0000:00:03.0: irq:0x20 > [ 33.698064] atomisp-isp2 0000:00:03.0: stream[0] started. > > Ctrl+C > > [ 48.185643] atomisp-isp2 0000:00:03.0: <atomisp_dqbuf: -512 > [ 48.204641] atomisp-isp2 0000:00:03.0: release device ATOMISP ISP > CAPTURE output > ... > > and machine still alive. > > > With v4.15-rc1 base (basically your branch + some my hack patches) Needs a bit of elaboration: a) nothing had been changed WRT AtomISP driver or media stuff, under "your branch" one reads Sakari's media_tree.git/atomisp branch; b) my hack patches has nothing to do with anything except AtomISP itself; c) v4.14 base required media/v4.15-1 tag to be merged as well. > the IRQ behaviour changed, i.e. I have got: > > > [ 85.167061] spurious APIC interrupt through vector ff on CPU#0, > should never happen. > [ 85.199886] atomisp-isp2 0000:00:03.0: stream[0] started. > > and Ctrl+C does NOT work. Machine just hangs. > > It might be related to this: > https://lkml.org/lkml/2017/12/22/697 > > Any comments, Thomas? > -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Intel Finland Oy
