# Pastebin yIDNlk0O
[259199.642408] ======================================================
[259199.649616] WARNING: possible circular locking dependency detected
[259199.656832] 5.14.0-rc3-debug+ #16 Tainted: G        W        
[259199.663617] ------------------------------------------------------
[259199.670845] kswapd0/155 is trying to acquire lock:
[259199.676658] ffffff80896029a0 (reservation_ww_class_mutex){+.+.}-{3:3}, at: msm_gem_lock.isra.0+0x14/0x20
[259199.687324] 
[259199.687324] but task is already holding lock:
[259199.695127] ffffffdb176748c8 (fs_reclaim){+.+.}-{0:0}, at: __fs_reclaim_acquire+0xc/0x50
[259199.704379] 
[259199.704379] which lock already depends on the new lock.
[259199.704379] 
[259199.715497] 
[259199.715497] the existing dependency chain (in reverse order) is:
[259199.724909] 
[259199.724909] -> #1 (fs_reclaim){+.+.}-{0:0}:
[259199.732487]        __fs_reclaim_acquire+0x44/0x50
[259199.738204]        fs_reclaim_acquire+0x44/0x94
[259199.743746]        dma_resv_lockdep+0x1c8/0x2f0
[259199.749304]        do_one_initcall+0x108/0x2b8
[259199.754769]        kernel_init_freeable+0x360/0x368
[259199.760689]        kernel_init+0x30/0x12c
[259199.765719]        ret_from_fork+0x10/0x18
[259199.770838] 
[259199.770838] -> #0 (reservation_ww_class_mutex){+.+.}-{3:3}:
[259199.779891]        __lock_acquire+0xd94/0x1064
[259199.785370]        lock_acquire+0x288/0x2d8
[259199.790572]        __ww_mutex_lock.constprop.0+0xe8/0x850
[259199.797023]        ww_mutex_lock+0x7c/0xec
[259199.802124]        msm_gem_lock.isra.0+0x14/0x20
[259199.807734]        msm_gem_free_object+0xac/0x1b8
[259199.813412]        drm_gem_object_free+0x30/0x3c
[259199.819001]        scan+0x1bc/0x228
[259199.823429]        msm_gem_shrinker_scan+0x48/0x228
[259199.829290]        shrink_slab.constprop.0+0x258/0x46c
[259199.835424]        shrink_node+0x1f8/0x400
[259199.840487]        balance_pgdat+0x204/0x488
[259199.845736]        kswapd+0x330/0x410
[259199.850367]        kthread+0x114/0x124
[259199.855085]        ret_from_fork+0x10/0x18
[259199.860167] 
[259199.860167] other info that might help us debug this:
[259199.860167] 
[259199.871000]  Possible unsafe locking scenario:
[259199.871000] 
[259199.878817]        CPU0                    CPU1
[259199.884337]        ----                    ----
[259199.889837]   lock(fs_reclaim);
[259199.893880]                                lock(reservation_ww_class_mutex);
[259199.901925]                                lock(fs_reclaim);
[259199.908510]   lock(reservation_ww_class_mutex);
[259199.913937] 
[259199.913937]  *** DEADLOCK ***
[259199.913937] 
[259199.922309] 2 locks held by kswapd0/155:
[259199.927112]  #0: ffffffdb176748c8 (fs_reclaim){+.+.}-{0:0}, at: __fs_reclaim_acquire+0xc/0x50
[259199.936669]  #1: ffffffdb17667c70 (shrinker_rwsem){++++}-{3:3}, at: shrink_slab.constprop.0+0x50/0x46c
[259199.947052] 
[259199.947052] stack backtrace:
[259199.953163] CPU: 7 PID: 155 Comm: kswapd0 Tainted: G        W         5.14.0-rc3-debug+ #16
[259199.962588] Hardware name: Google Lazor (rev1 - 2) with LTE (DT)
[259199.969619] Call trace:
[259199.972982]  dump_backtrace+0x0/0x18c
[259199.977585]  show_stack+0x24/0x30
[259199.981835]  dump_stack_lvl+0xa0/0xd4
[259199.986448]  dump_stack+0x18/0x34
[259199.990687]  print_circular_bug+0x1b4/0x1f0
[259199.995820]  check_noncircular+0x78/0xac
[259200.000684]  __lock_acquire+0xd94/0x1064
[259200.005533]  lock_acquire+0x288/0x2d8
[259200.010108]  __ww_mutex_lock.constprop.0+0xe8/0x850
[259200.015934]  ww_mutex_lock+0x7c/0xec
[259200.020404]  msm_gem_lock.isra.0+0x14/0x20
[259200.025405]  msm_gem_free_object+0xac/0x1b8
[259200.030492]  drm_gem_object_free+0x30/0x3c
[259200.035478]  scan+0x1bc/0x228
[259200.039294]  msm_gem_shrinker_scan+0x48/0x228
[259200.044540]  shrink_slab.constprop.0+0x258/0x46c
[259200.050042]  shrink_node+0x1f8/0x400
[259200.054480]  balance_pgdat+0x204/0x488
[259200.059095]  kswapd+0x330/0x410
[259200.063076]  kthread+0x114/0x124
[259200.067142]  ret_from_fork+0x10/0x18