On Mon, Jan 13, 2020 at 08:19:39AM +0100, Gerd Hoffmann wrote: > On Fri, Jan 10, 2020 at 05:32:11PM +0100, Marek Marczykowski-Górecki wrote: > > Hi, > > > > This is the context of "bochs_drm: failed bochs_hw_init() results in > > panic". When I boot the system, if plymouth is visible, it crashes. But > > if I press ESC to hide it, it boots fine. bochs_drm is build as module > > and _not_ included in the initramfs, so it is loaded only after root > > filesystem is mounted. And before that, efifb works just fine, including > > nice graphical disk passphrase prompt. > > > [ 32.951345] fb0: switching to bochsdrmfb from EFI VGA > [ ... ] > > [ 33.030158] bochs-drm 0000:00:02.0: BAR 0: can't reserve [mem > > 0xc0000000-0xc0ffffff pref] > > Looks like efifb continues to claim the framebuffer resource > (0xc0000000-0xc0ffffff) for some reason, so bochs-drm can't > reserve it. > > No clue why, also doesn't reproduce here (standard fedora 31 5.4.7 > kernel). I don't have an encrypted disk, so no passphrase prompt, > maybe that makes a difference.
Extra data point: it worked on 4.19.89. > How does /proc/iomem look after boot, specifically the 0000:00:02.0 pci > bars? grep 0000:00:02.0 /proc/iomem c0000000-c0ffffff : 0000:00:02.0 c1087000-c1087fff : 0000:00:02.0 lspci -vvs 0000:00:02.0 00:02.0 VGA compatible controller: Device 1234:1111 (rev 02) (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc. Device 1100 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: Memory at c0000000 (32-bit, prefetchable) [size=16M] Region 2: Memory at c1087000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at 000c0000 [disabled] [size=128K] Kernel modules: bochs_drm -- Best Regards, Marek Marczykowski-Górecki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
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