Do you think i should send an issue to DRM/Radeon ? Thanks for your help ! On 07/03/2017 19:41, Wargreen wrote: > Sorry, i'm more a user than a debugger... > > So, the /proc/[PID]/stack output, with a gnome_shell: > [<ffffffffc0b37e9f>] radeon_fence_default_wait+0xbf/0x170 [radeon] > [<ffffffffae34227d>] fence_wait_timeout+0x9d/0x350 > [<ffffffffc0a2dba5>] ttm_bo_vm_fault+0x455/0x530 [ttm] > [<ffffffffc0b39e27>] radeon_ttm_fault+0x47/0x70 [radeon] > [<ffffffffae00f9d1>] __do_fault+0x81/0x170 > [<ffffffffae01377b>] handle_mm_fault+0x57b/0x1450 > [<ffffffffade70459>] __do_page_fault+0x289/0x5d0 > [<ffffffffade707c2>] do_page_fault+0x22/0x30 > [<ffffffffae4fccf8>] page_fault+0x28/0x30 > [<ffffffffffffffff>] 0xffffffffffffffff > > And the corresponding locks : > Mar 7 19:15:49 LaChoze kernel: [ 239.624948] NOHZ: > local_softirq_pending 80 > Mar 7 19:15:57 LaChoze kernel: [ 247.718336] sysrq: SysRq : Show Locks > Held > Mar 7 19:15:57 LaChoze kernel: [ 247.718342] > Mar 7 19:15:57 LaChoze kernel: [ 247.718342] Showing all locks held in > the system: > Mar 7 19:15:57 LaChoze kernel: [ 247.718371] 5 locks held by > irq/1-i8042/126: > Mar 7 19:15:57 LaChoze kernel: [ 247.718372] #0: > (&serio->lock){+.+...}, at: [<ffffffffae34dab8>] serio_interrupt+0x28/0x80 > Mar 7 19:15:57 LaChoze kernel: [ 247.718378] #1: > (&dev->event_lock){+.+...}, at: [<ffffffffae353cba>] input_event+0x3a/0x60 > Mar 7 19:15:57 LaChoze kernel: [ 247.718382] #2: > (rcu_read_lock){......}, at: [<ffffffffae352ee5>] > input_pass_values.part.5+0x5/0x270 > Mar 7 19:15:57 LaChoze kernel: [ 247.718385] #3: > (rcu_read_lock){......}, at: [<ffffffffae2c1eb5>] __handle_sysrq+0x5/0x220 > Mar 7 19:15:57 LaChoze kernel: [ 247.718389] #4: > (tasklist_lock){+.+...}, at: [<ffffffffadeeae1d>] > debug_show_all_locks+0x3d/0x1a0 > Mar 7 19:15:57 LaChoze kernel: [ 247.718412] 1 lock held by in:imklog/895: > Mar 7 19:15:57 LaChoze kernel: [ 247.718412] #0: > (&f->f_pos_lock){+.+.+.}, at: [<ffffffffae08883a>] __fdget_pos+0x4a/0x50 > Mar 7 19:15:57 LaChoze kernel: [ 247.718435] 2 locks held by Xorg/2215: > Mar 7 19:15:57 LaChoze kernel: [ 247.718435] #0: > (&rdev->exclusive_lock){++++.+}, at: [<ffffffffadef3710>] > rt_down_read+0x10/0x20 > Mar 7 19:15:57 LaChoze kernel: [ 247.718439] #1: > (&rdev->pm.mclk_lock){++++++}, at: [<ffffffffadef3710>] > rt_down_read+0x10/0x20 > Mar 7 19:15:57 LaChoze kernel: [ 247.718452] 2 locks held by > gnome-shell/2412: > Mar 7 19:15:57 LaChoze kernel: [ 247.718453] #0: > (&rdev->pm.mclk_lock){++++++}, at: [<ffffffffadef3710>] > rt_down_read+0x10/0x20 > Mar 7 19:15:57 LaChoze kernel: [ 247.718456] #1: > (reservation_ww_class_mutex){+.+.+.}, at: [<ffffffffc0a2d7b0>] > ttm_bo_vm_fault+0x60/0x530 [ttm] > Mar 7 19:15:57 LaChoze kernel: [ 247.718487] > Mar 7 19:15:57 LaChoze kernel: [ 247.718487] > ============================================= > > If needeed, all theres logs are here : > http://kalaj.darktech.org/~wargreen/logs/radeon/ > I'm here for the next step. > > > > On 06/03/2017 20:07, Julia Cartwright wrote: >> On Mon, Mar 06, 2017 at 06:59:26PM +0100, Wargreen wrote: >>> Here a new try, with a process name more explicit, but without X crash >>> this time. >>> So it's the graphic's ressources demanding process. >>> >>> [ 497.053562] 2 locks held by Xorg/2154: >>> [ 497.053563] #0: (&rdev->exclusive_lock){++++.+}, at: [<ffffffffa90f3710>] rt_down_read+0x10/0x20 >>> [ 497.053571] #1: (&rdev->pm.mclk_lock){++++++}, at: [<ffffffffa90f3710>] rt_down_read+0x10/0x20 >>> [ 497.053589] 2 locks held by gnome-shell/2344: >>> [ 497.053590] #0: (&rdev->pm.mclk_lock){++++++}, at: [<ffffffffa90f3710>] rt_down_read+0x10/0x20 >>> [ 497.053597] #1: (reservation_ww_class_mutex){+.+.+.}, at: [<ffffffffc0af47b0>] ttm_bo_vm_fault+0x60/0x530 [ttm] >> Unfortunately, this doesn't get us any more data than we already had. >> For some reason, a thread (G.Main in the prior trace, gnome-shell here) >> in this state fails to make progress. >> >> We need to better understand what this thread is doing. Is it >> Runnable/spinning? Is it itself waiting on a lock? Dumping the stack >> from it in this state might be revealing. The contents of >> /proc/<pid>/stack might be of interest. >> >> Julia > >
Attachment:
signature.asc
Description: OpenPGP digital signature