> -----Original Message-----
> From: Ville Syrjälä <[email protected]>
> Sent: Friday, 28 November 2025 1.04
> To: Borah, Chaitanya Kumar <[email protected]>
> Cc: [email protected]; [email protected]; intel-
> [email protected]; Saarinen, Jani <[email protected]>; Kurmi,
> Suresh Kumar <[email protected]>; De Marchi, Lucas
> <[email protected]>
> Subject: Re: REGRESSION on drm-tip
> 
> On Thu, Nov 27, 2025 at 11:55:54AM +0530, Borah, Chaitanya Kumar wrote:
> > Hello Christian,
> >
> > This is Chaitanya (again!).
> >
> > 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]  <TASK>
> > <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 <[email protected]>
> > Date:   Wed Nov 5 14:39:45 2025 +0100
> >
> >      power: always freeze efivarfs
> 
> -       if (freeze_all_ptr && !(sb->s_type->fs_flags & FS_POWER_FREEZE))
> +     if (!freeze_all_ptr && !(sb->s_type->fs_flags & FS_POWER_FREEZE))
> 
> ?
> 
Should we go with fix or revert? We should decide as still badly broken. 
Still only i915 view: 
https://intel-gfx-ci.01.org/tree/drm-tip/index.html?testfilter=suspend 

> --
> Ville Syrjälä
> Intel

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