Hi, On Thu, Jan 16, 2020 at 06:14:40PM +0000, Chavdar Ivanov wrote:
> Today's update brought 9.99.38, which fails to boot on my HP Envy 17 > laptop with Intel 530 graphics and NVidia GeForce; latter not used. The > system uses EFI boot and the panic happens the moment it has to switch > the console in graphics mode. I managed to collect a dump; the trace is > as follows: > > .... > > #1? 0xffffffff809fd663 in kern_reboot () > #2? 0xffffffff807c1ec3 in db_reboot_cmd () > #3? 0xffffffff807c26db in db_command () > #4? 0xffffffff807c2a46 in db_command_loop () > #5? 0xffffffff807c63ca in db_trap () > #6? 0xffffffff80220af5 in kdb_trap () > #7? 0xffffffff80225c66 in trap () > #8? 0xffffffff8021ed43 in alltraps () > #9? 0xffffffff8021f55d in breakpoint () > #10 0xffffffff80a3e380 in vpanic () > #11 0xffffffff80e85393 in kern_assert () > #12 0xffffffff809ba1ec in uvm_pagegetdirty () > #13 0xffffffff809ba218 in uvm_pagemarkdirty () > #14 0xffffffff80c0100e in intel_lr_context_deferred_alloc () > #15 0xffffffff80c01470 in logical_ring_init () > #16 0xffffffff80c016fd in intel_logical_rings_init () > #17 0xffffffff80b86359 in i915_gem_init () > #18 0xffffffff80b7b11d in i915_driver_load () > #19 0xffffffff8087f31b in drm_dev_register () > #20 0xffffffff806be10b in drm_pci_attach () > #21 0xffffffff80b757ab in i915drmkms_attach_real () > #22 0xffffffff80a20ebe in config_mountroot_thread () > #23 0xffffffff80209777 in lwp_trampoline () > #24 0x0000000000000000 in ?? () I see the problem. DRM does not hold the appropriate locks. I don't think it needs to mark those pages dirty anyhow. I'll fix it tomorrow. Cheers, Andrew