Displaying 3 results from an estimated 3 matches for "__do_munmap".
2020 Jan 09
1
[BUG] nouveau lockdep splat
...9] __mutex_lock+0x134/0xc70
[ 98.459526] nouveau_svmm_invalidate_range_start+0x71/0x110 [nouveau]
[ 98.466593] __mmu_notifier_invalidate_range_start+0x25c/0x320
[ 98.473031] unmap_vmas+0x10c/0x200
[ 98.477130] unmap_region+0x1a4/0x240
[ 98.481410] __do_munmap+0x3e0/0x750
[ 98.485535] __vm_munmap+0xbc/0x130
[ 98.489599] __x64_sys_munmap+0x3c/0x50
[ 98.493951] do_syscall_64+0x68/0x280
[ 98.498162] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 98.503778]
[ 98.503778] -> #2 (mmu_notifier_invalidate_range_start){+.+.}...
2020 Oct 23
0
kvm+nouveau induced lockdep gripe
...70.136294] nouveau_sgdma_destroy+0x20/0x50 [nouveau]
[ 70.136302] ttm_bo_cleanup_memtype_use+0x3e/0x60 [ttm]
[ 70.136310] ttm_bo_release+0x29c/0x600 [ttm]
[ 70.136317] ttm_bo_vm_close+0x15/0x30 [ttm]
[ 70.136324] remove_vma+0x3e/0x70
[ 70.136329] __do_munmap+0x2b7/0x4f0
[ 70.136333] __vm_munmap+0x5b/0xa0
[ 70.136338] __x64_sys_munmap+0x27/0x30
[ 70.136343] do_syscall_64+0x33/0x40
[ 70.136349] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 70.136354]
-> #0 (&mm->mmap_lock#2){++++}-{3:3}:
[ 70....
2020 Oct 24
1
kvm+nouveau induced lockdep gripe
...70.136310] ttm_bo_release+0x29c/0x600 [ttm]
Looks like we can break the lock chain by moving ttm bo's release
method out of mmap_lock, see diff below.
> [ 70.136317] ttm_bo_vm_close+0x15/0x30 [ttm]
> [ 70.136324] remove_vma+0x3e/0x70
> [ 70.136329] __do_munmap+0x2b7/0x4f0
> [ 70.136333] __vm_munmap+0x5b/0xa0
> [ 70.136338] __x64_sys_munmap+0x27/0x30
> [ 70.136343] do_syscall_64+0x33/0x40
> [ 70.136349] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> [ 70.136354]
> -> #0 (&mm->mma...