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This mail is regarding another regression we are seeing in our CI runs[1] on drm-tip (with both xe and i915). ````````````````````````````````````````````````````````````````````````````````` <4> [157.687644] ------------[ cut here ]------------ <4> [157.687768] WARNING: CPU: 5 PID: 2277 at kernel/freezer.c:139 __set_task_frozen+0x7f/0xb0 ... <4> [157.687923] PKRU: 55555554 <4> [157.687924] Call Trace: <4> [157.687925] <4> [157.687926] ? __pfx___set_task_frozen+0x10/0x10 <4> [157.687929] task_call_func+0x6d/0x120 <4> [157.687932] ? cgroup_freezing+0x89/0x200 <4> [157.687937] freeze_task+0x98/0x100 <4> [157.687940] try_to_freeze_tasks+0xd2/0x440 <4> [157.687946] freeze_processes+0x56/0xd0 <4> [157.687948] hibernate+0x129/0x4a0 <4> [157.687951] state_store+0xd3/0xe0 <4> [157.687954] kobj_attr_store+0x12/0x40 <4> [157.687959] sysfs_kf_write+0x4d/0x80 <4> [157.687963] kernfs_fop_write_iter+0x188/0x240 <4> [157.687967] vfs_write+0x283/0x540 <4> [157.687969] ? free_to_partial_list+0x46d/0x640 <4> [157.687976] ksys_write+0x6f/0xf0 <4> [157.687980] __x64_sys_write+0x19/0x30 <4> [157.687982] x64_sys_call+0x79/0x26a0 <4> [157.687984] do_syscall_64+0x93/0xd60 <4> [157.687987] ? putname+0x65/0x90 <4> [157.687990] ? kmem_cache_free+0x553/0x680 <4> [157.687995] ? putname+0x65/0x90 <4> [157.687997] ? putname+0x65/0x90 <4> [157.687999] ? do_sys_openat2+0x8b/0xd0 <4> [157.688003] ? __x64_sys_openat+0x54/0xa0 <4> [157.688007] ? do_syscall_64+0x1b7/0xd60 <4> [157.688009] ? __fput+0x1bf/0x2f0 <4> [157.688012] ? fput_close_sync+0x3d/0xa0 <4> [157.688015] ? __x64_sys_close+0x3e/0x90 <4> [157.688017] ? do_syscall_64+0x1b7/0xd60 <4> [157.688019] ? putname+0x65/0x90 <4> [157.688021] ? putname+0x65/0x90 <4> [157.688023] ? do_sys_openat2+0x8b/0xd0 <4> [157.688024] ? __fput+0x1bf/0x2f0 <4> [157.688028] ? __x64_sys_openat+0x54/0xa0 <4> [157.688032] ? do_syscall_64+0x1b7/0xd60 <4> [157.688034] ? do_syscall_64+0x1b7/0xd60 <4> [157.688036] ? irqentry_exit+0x77/0xb0 <4> [157.688038] ? exc_page_fault+0xbd/0x2c0 <4> [157.688042] entry_SYSCALL_64_after_hwframe+0x76/0x7e <4> [157.688044] RIP: 0033:0x72523c91c574 ````````````````````````````````````````````````````````````````````````````````` Details log can be found in [2]. After bisecting the tree, the following patch [3] seems to be the first "bad" commit ````````````````````````````````````````````````````````````````````````````````````````````````````````` commit a3f8f8662771285511ae26c4c8d3ba1cd22159b9 Author: Christian Brauner Date: Wed Nov 5 14:39:45 2025 +0100 power: always freeze efivarfs ````````````````````````````````````````````````````````````````````````````````````````````````````````` We also verified that if we revert the patch the issue is not seen. Could you please check why the patch causes this regression and provide a fix if necessary? Thank you. Regards Chaitanya [1] https://intel-gfx-ci.01.org/tree/drm-tip/index.html?testfilter=suspend [2] https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17595/shard-mtlp-6/igt@gem_exec_suspend@basic-s4-devices.html [3] https://gitlab.com/freedesktop-mirror/drm-tip/-/commit/a3f8f8662771285511ae26c4c8d3ba1cd22159b9