Pluck includes all these 3 commits through upstream stable update. ** Description changed:
[Impact] Random crashes have been reported on GPUs that use DML2 (Ryzen AI APUs and Radeon 9000 dGPU). The crashes are root caused to corruption in registers used for floating point code. [Fix] They are caused by a lack of FP context protection around that code. They are fixed by these 3 commits: - - https://github.com/torvalds/linux/commit/afcdf51d97cd58dd7a2e0aa8acbaea5108fa6826 - https://github.com/torvalds/linux/commit/366e77cd4923c3aa45341e15dcaf3377af9b042f - https://github.com/torvalds/linux/commit/4408b59eeacfea777aae397177f49748cadde5ce + v6.15-rc2 + 366e77cd4923 drm/amd/display: Protect FPU in dml2_validate()/dml21_validate() + afcdf51d97cd drm/amd/display: Protect FPU in dml2_init()/dml21_init() + 4408b59eeacf drm/amd/display: Protect FPU in dml21_copy() [Test] 1. Install ubuntu with 6.11 kernel on AMD platform 2. Run reboot test around 300 times 3. The system should not hang while booting up [Where problems could occur] The 3 commits are straightforward for the protection, and didn't involve any functional changes. ** Changed in: linux (Ubuntu Plucky) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2106923 Title: Fix divide by zero errors in DML2 Status in HWE Next: New Status in linux package in Ubuntu: Invalid Status in linux-oem-6.11 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.11 source package in Noble: Fix Committed Status in linux source package in Plucky: Fix Released Status in linux-oem-6.11 source package in Plucky: Invalid Bug description: [Impact] Random crashes have been reported on GPUs that use DML2 (Ryzen AI APUs and Radeon 9000 dGPU). The crashes are root caused to corruption in registers used for floating point code. [Fix] They are caused by a lack of FP context protection around that code. They are fixed by these 3 commits: v6.15-rc2 366e77cd4923 drm/amd/display: Protect FPU in dml2_validate()/dml21_validate() afcdf51d97cd drm/amd/display: Protect FPU in dml2_init()/dml21_init() 4408b59eeacf drm/amd/display: Protect FPU in dml21_copy() [Test] 1. Install ubuntu with 6.11 kernel on AMD platform 2. Run reboot test around 300 times 3. The system should not hang while booting up [Where problems could occur] The 3 commits are straightforward for the protection, and didn't involve any functional changes. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2106923/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
