Daniel, thanks a lot for guiding the debugging on this, and Andreas for carrying the debugging out.
I thought incorrectly that this was already stated: The leak does not happen with VAAPI disabled ---> chromium --disable-features=VaapiVideoDecoder,VaapiVideoEncoder,VaapiVideoDecodeLinuxGL <--- (As such it does not occur in stable/candidate channels, that do not have VAAPI merged in.) We don't have much of a delta about hwacc with upstream right now, it's mostly patches for Ozone (which doesn't get used in Xorg, correct me if I'm wrong) and then the chromium.launcher that simply turns on some flags. Patches: https://git.launchpad.net/~chromium-team/chromium-browser/+git/snap-from-source/tree/build/chromium-patches/optimization?h=dev Flags: https://git.launchpad.net/~chromium-team/chromium-browser/+git/snap-from-source/tree/launcher/chromium.launcher?h=dev#n128 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/2033433 Title: Chromium leaks tens of gigabytes of pixmaps (in the Xorg process) after using hardware accelerated video Status in chromium-browser package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Opinion Bug description: chromium 118.0.5966.0 2604 latest/edge Whenever I use chromium in a video session (meet, youtube) that used hardware acceleration, for a long time (like 20min or more), and then close it, the whole desktop freezes, and the laptop fan turns on. Logging in remotely I see that Xorg is at 100% CPU. The rest of the system is operational, but nothing graphical is. Just the mouse cursor moves around. SOMETIMES, if I wait a few minutes, Xorg resumes behaving normally, and I can use the desktop again, but most of the time I have to login remotely and kill -9 xorg (plain kill won't do it). With wayland, this does not happen. This could very well be an Xorg bug, but filing here first for visibility. $ lsgpu card0 Intel Alderlake_p (Gen12) drm:/dev/dri/card0 └─renderD128 $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 46 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 16 On-line CPU(s) list: 0-15 Vendor ID: GenuineIntel Model name: 12th Gen Intel(R) Core(TM) i7-1270P CPU family: 6 Model: 154 Thread(s) per core: 2 Core(s) per socket: 12 Socket(s): 1 Stepping: 3 CPU(s) scaling MHz: 41% CPU max MHz: 4800,0000 CPU min MHz: 400,0000 BogoMIPS: 4992,00 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdp e1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqd q dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave a vx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb intel_pt sha_ni xsaveopt xsavec xgetbv1 xsaves split_lock_detect avx_vnni dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req hfi umip pku ospke waitpkg gfni vaes vpclmulqdq tme rdpid movdiri movdir64b fsrm md_clear serialize pconfig arch_lbr ibt flush_l1d arch_capabilities Virtualization features: Virtualization: VT-x Caches (sum of all): L1d: 448 KiB (12 instances) L1i: 640 KiB (12 instances) L2: 9 MiB (6 instances) L3: 18 MiB (1 instance) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-15 Vulnerabilities: Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Not affected Retbleed: Not affected Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Enhanced IBRS, IBPB conditional, RSB filling, PBRSB-eIBRS SW sequence Srbds: Not affected Tsx async abort: Not affected ProblemType: Bug DistroRelease: Ubuntu 23.04 Package: chromium-browser (not installed) ProcVersionSignature: Ubuntu 6.2.0-27.28-generic 6.2.15 Uname: Linux 6.2.0-27-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.26.1-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Tue Aug 29 16:47:30 2023 RebootRequiredPkgs: Error: path contained symlinks. SourcePackage: chromium-browser UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/2033433/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
