Same thing since I upgraded to 4.15.0-151-generic on my laptop. Previously had 150+ days of uptime, now it crashes every few days, and up to 3 times a day.
Very similar behaviour than what Martin reported just above: when logging in to XFCE, it can crash easily, or when simply using the Desktop. When it happens, this is a hard freeze, the watchdog doesn't trigger (I waited for 1 hour), and even the sysrq keys no longer work (yes, these are enabled). Hardware: DELL Latitude 5300. To add some datapoints, here are my 2 last crash reports: ==> /var/crash/linux-image-4.15.0-151-generic.31533.crash <== ProblemType: KernelOops Annotation: Your system might become unstable now and might need to be restarted. Date: Fri Jul 23 15:41:43 2021 Failure: oops OopsText: BUG: Bad page map in process Renderer pte:8000009fb753c258 pmd:3993e9067 addr:00000000b8067c8b vm_flags:080000f9 anon_vma: (null) mapping:0000000073ae2b58 index:648 file:memfd:mozilla-ipc fault:shmem_fault mmap:shmem_mmap readpage: (null) CPU: 0 PID: 5797 Comm: Renderer Not tainted 4.15.0-151-generic #157-Ubuntu Hardware name: Dell Inc. Latitude 5300/0932VT, BIOS 1.8.1 12/16/2019 Call Trace: Package: linux-image-4.15.0-151-generic 4.15.0-151.157 SourcePackage: linux Tags: kernel-oops Uname: Linux 4.15.0-151-generic x86_64 ==> /var/crash/linux-image-4.15.0-151-generic.45463.crash <== ProblemType: KernelOops Annotation: Your system might become unstable now and might need to be restarted. Date: Fri Jul 23 15:41:42 2021 Failure: oops OopsText: BUG: Bad page cache in process Renderer pfn:2d5fe5 page:ffffed164b57f940 count:3 mapcount:1 mapping:ffff8fdc5041b488 index:0x648 flags: 0x17ffffc004002d(locked|referenced|uptodate|lru|swapbacked) raw: 0017ffffc004002d ffff8fdc5041b488 0000000000000648 0000000300000000 raw: ffffed164d96dbe0 ffffed1650092820 0000000000000000 ffff8fdda9018000 page dumped because: still mapped when deleted page->mem_cgroup:ffff8fdda9018000 CPU: 0 PID: 5797 Comm: Renderer Tainted: G B 4.15.0-151-generic #157-Ubuntu Hardware name: Dell Inc. Latitude 5300/0932VT, BIOS 1.8.1 12/16/2019 Call Trace: Package: linux-image-4.15.0-151-generic 4.15.0-151.157 SourcePackage: linux Tags: kernel-oops Uname: Linux 4.15.0-151-generic x86_64 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1938013 Title: 4.15.0-151 is freezing intel 5th gen ThinkPad (T450) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1938013/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
