* [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem
@ 2026-02-03 14:34 Thomas Hellström
2026-02-03 15:34 ` ✓ CI.KUnit: success for mm: Fix a hmm_range_fault() livelock / starvation problem (rev2) Patchwork
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: Thomas Hellström @ 2026-02-03 14:34 UTC (permalink / raw)
To: intel-xe
Cc: Thomas Hellström, Alistair Popple, Ralph Campbell,
Christoph Hellwig, Jason Gunthorpe, Jason Gunthorpe,
Leon Romanovsky, Andrew Morton, Matthew Brost, John Hubbard,
linux-mm, dri-devel, stable
If hmm_range_fault() fails a folio_trylock() in do_swap_page,
trying to acquire the lock of a device-private folio for migration,
to ram, the function will spin until it succeeds grabbing the lock.
However, if the process holding the lock is depending on a work
item to be completed, which is scheduled on the same CPU as the
spinning hmm_range_fault(), that work item might be starved and
we end up in a livelock / starvation situation which is never
resolved.
This can happen, for example if the process holding the
device-private folio lock is stuck in
migrate_device_unmap()->lru_add_drain_all()
The lru_add_drain_all() function requires a short work-item
to be run on all online cpus to complete.
A prerequisite for this to happen is:
a) Both zone device and system memory folios are considered in
migrate_device_unmap(), so that there is a reason to call
lru_add_drain_all() for a system memory folio while a
folio lock is held on a zone device folio.
b) The zone device folio has an initial mapcount > 1 which causes
at least one migration PTE entry insertion to be deferred to
try_to_migrate(), which can happen after the call to
lru_add_drain_all().
c) No or voluntary only preemption.
This all seems pretty unlikely to happen, but indeed is hit by
the "xe_exec_system_allocator" igt test.
Resolve this by waiting for the folio to be unlocked if the
folio_trylock() fails in the do_swap_page() function.
Future code improvements might consider moving
the lru_add_drain_all() call in migrate_device_unmap() to be
called *after* all pages have migration entries inserted.
That would eliminate also b) above.
v2:
- Instead of a cond_resched() in the hmm_range_fault() function,
eliminate the problem by waiting for the folio to be unlocked
in do_swap_page() (Alistair Popple, Andrew Morton)
v3:
- Add a stub migration_entry_wait_on_locked() for the
!CONFIG_MIGRATION case. (Kernel Test Robot)
Suggested-by: Alistair Popple <apopple@nvidia.com>
Fixes: 1afaeb8293c9 ("mm/migrate: Trylock device page in do_swap_page")
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: linux-mm@kvack.org
Cc: <dri-devel@lists.freedesktop.org>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: <stable@vger.kernel.org> # v6.15+
---
include/linux/migrate.h | 6 ++++++
mm/memory.c | 3 ++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 26ca00c325d9..800ec174b601 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -97,6 +97,12 @@ static inline int set_movable_ops(const struct movable_operations *ops, enum pag
return -ENOSYS;
}
+static inline void migration_entry_wait_on_locked(softleaf_t entry, spinlock_t *ptl)
+ __releases(ptl)
+{
+ spin_unlock(ptl);
+}
+
#endif /* CONFIG_MIGRATION */
#ifdef CONFIG_NUMA_BALANCING
diff --git a/mm/memory.c b/mm/memory.c
index da360a6eb8a4..ed20da5570d5 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4684,7 +4684,8 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
unlock_page(vmf->page);
put_page(vmf->page);
} else {
- pte_unmap_unlock(vmf->pte, vmf->ptl);
+ pte_unmap(vmf->pte);
+ migration_entry_wait_on_locked(entry, vmf->ptl);
}
} else if (softleaf_is_hwpoison(entry)) {
ret = VM_FAULT_HWPOISON;
--
2.52.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* ✓ CI.KUnit: success for mm: Fix a hmm_range_fault() livelock / starvation problem (rev2)
2026-02-03 14:34 [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem Thomas Hellström
@ 2026-02-03 15:34 ` Patchwork
2026-02-03 16:08 ` ✗ Xe.CI.BAT: failure " Patchwork
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: Patchwork @ 2026-02-03 15:34 UTC (permalink / raw)
To: Thomas Hellström; +Cc: intel-xe
== Series Details ==
Series: mm: Fix a hmm_range_fault() livelock / starvation problem (rev2)
URL : https://patchwork.freedesktop.org/series/161081/
State : success
== Summary ==
+ trap cleanup EXIT
+ /kernel/tools/testing/kunit/kunit.py run --kunitconfig /kernel/drivers/gpu/drm/xe/.kunitconfig
[15:33:01] Configuring KUnit Kernel ...
Generating .config ...
Populating config with:
$ make ARCH=um O=.kunit olddefconfig
[15:33:06] Building KUnit Kernel ...
Populating config with:
$ make ARCH=um O=.kunit olddefconfig
Building with:
$ make all compile_commands.json scripts_gdb ARCH=um O=.kunit --jobs=48
[15:33:38] Starting KUnit Kernel (1/1)...
[15:33:38] ============================================================
Running tests with:
$ .kunit/linux kunit.enable=1 mem=1G console=tty kunit_shutdown=halt
[15:33:38] ================== guc_buf (11 subtests) ===================
[15:33:38] [PASSED] test_smallest
[15:33:38] [PASSED] test_largest
[15:33:38] [PASSED] test_granular
[15:33:38] [PASSED] test_unique
[15:33:38] [PASSED] test_overlap
[15:33:38] [PASSED] test_reusable
[15:33:38] [PASSED] test_too_big
[15:33:38] [PASSED] test_flush
[15:33:38] [PASSED] test_lookup
[15:33:38] [PASSED] test_data
[15:33:38] [PASSED] test_class
[15:33:38] ===================== [PASSED] guc_buf =====================
[15:33:38] =================== guc_dbm (7 subtests) ===================
[15:33:38] [PASSED] test_empty
[15:33:38] [PASSED] test_default
[15:33:38] ======================== test_size ========================
[15:33:38] [PASSED] 4
[15:33:38] [PASSED] 8
[15:33:38] [PASSED] 32
[15:33:38] [PASSED] 256
[15:33:38] ==================== [PASSED] test_size ====================
[15:33:38] ======================= test_reuse ========================
[15:33:38] [PASSED] 4
[15:33:38] [PASSED] 8
[15:33:38] [PASSED] 32
[15:33:38] [PASSED] 256
[15:33:38] =================== [PASSED] test_reuse ====================
[15:33:38] =================== test_range_overlap ====================
[15:33:38] [PASSED] 4
[15:33:38] [PASSED] 8
[15:33:38] [PASSED] 32
[15:33:38] [PASSED] 256
[15:33:38] =============== [PASSED] test_range_overlap ================
[15:33:38] =================== test_range_compact ====================
[15:33:38] [PASSED] 4
[15:33:38] [PASSED] 8
[15:33:38] [PASSED] 32
[15:33:38] [PASSED] 256
[15:33:38] =============== [PASSED] test_range_compact ================
[15:33:38] ==================== test_range_spare =====================
[15:33:38] [PASSED] 4
[15:33:38] [PASSED] 8
[15:33:38] [PASSED] 32
[15:33:38] [PASSED] 256
[15:33:38] ================ [PASSED] test_range_spare =================
[15:33:38] ===================== [PASSED] guc_dbm =====================
[15:33:38] =================== guc_idm (6 subtests) ===================
[15:33:38] [PASSED] bad_init
[15:33:38] [PASSED] no_init
[15:33:38] [PASSED] init_fini
[15:33:38] [PASSED] check_used
[15:33:38] [PASSED] check_quota
[15:33:38] [PASSED] check_all
[15:33:38] ===================== [PASSED] guc_idm =====================
[15:33:38] ================== no_relay (3 subtests) ===================
[15:33:38] [PASSED] xe_drops_guc2pf_if_not_ready
[15:33:38] [PASSED] xe_drops_guc2vf_if_not_ready
[15:33:38] [PASSED] xe_rejects_send_if_not_ready
[15:33:38] ==================== [PASSED] no_relay =====================
[15:33:38] ================== pf_relay (14 subtests) ==================
[15:33:38] [PASSED] pf_rejects_guc2pf_too_short
[15:33:38] [PASSED] pf_rejects_guc2pf_too_long
[15:33:38] [PASSED] pf_rejects_guc2pf_no_payload
[15:33:38] [PASSED] pf_fails_no_payload
[15:33:38] [PASSED] pf_fails_bad_origin
[15:33:38] [PASSED] pf_fails_bad_type
[15:33:38] [PASSED] pf_txn_reports_error
[15:33:38] [PASSED] pf_txn_sends_pf2guc
[15:33:38] [PASSED] pf_sends_pf2guc
[15:33:38] [SKIPPED] pf_loopback_nop
[15:33:38] [SKIPPED] pf_loopback_echo
[15:33:38] [SKIPPED] pf_loopback_fail
[15:33:38] [SKIPPED] pf_loopback_busy
[15:33:38] [SKIPPED] pf_loopback_retry
[15:33:38] ==================== [PASSED] pf_relay =====================
[15:33:38] ================== vf_relay (3 subtests) ===================
[15:33:38] [PASSED] vf_rejects_guc2vf_too_short
[15:33:38] [PASSED] vf_rejects_guc2vf_too_long
[15:33:38] [PASSED] vf_rejects_guc2vf_no_payload
[15:33:38] ==================== [PASSED] vf_relay =====================
[15:33:38] ================ pf_gt_config (6 subtests) =================
[15:33:38] [PASSED] fair_contexts_1vf
[15:33:38] [PASSED] fair_doorbells_1vf
[15:33:38] [PASSED] fair_ggtt_1vf
[15:33:38] ====================== fair_contexts ======================
[15:33:38] [PASSED] 1 VF
[15:33:38] [PASSED] 2 VFs
[15:33:38] [PASSED] 3 VFs
[15:33:38] [PASSED] 4 VFs
[15:33:38] [PASSED] 5 VFs
[15:33:38] [PASSED] 6 VFs
[15:33:38] [PASSED] 7 VFs
[15:33:38] [PASSED] 8 VFs
[15:33:38] [PASSED] 9 VFs
[15:33:38] [PASSED] 10 VFs
[15:33:38] [PASSED] 11 VFs
[15:33:38] [PASSED] 12 VFs
[15:33:38] [PASSED] 13 VFs
[15:33:38] [PASSED] 14 VFs
[15:33:38] [PASSED] 15 VFs
[15:33:38] [PASSED] 16 VFs
[15:33:38] [PASSED] 17 VFs
[15:33:38] [PASSED] 18 VFs
[15:33:38] [PASSED] 19 VFs
[15:33:38] [PASSED] 20 VFs
[15:33:38] [PASSED] 21 VFs
[15:33:38] [PASSED] 22 VFs
[15:33:38] [PASSED] 23 VFs
[15:33:38] [PASSED] 24 VFs
[15:33:38] [PASSED] 25 VFs
[15:33:38] [PASSED] 26 VFs
[15:33:38] [PASSED] 27 VFs
[15:33:38] [PASSED] 28 VFs
[15:33:38] [PASSED] 29 VFs
[15:33:38] [PASSED] 30 VFs
[15:33:38] [PASSED] 31 VFs
[15:33:38] [PASSED] 32 VFs
[15:33:38] [PASSED] 33 VFs
[15:33:38] [PASSED] 34 VFs
[15:33:38] [PASSED] 35 VFs
[15:33:38] [PASSED] 36 VFs
[15:33:38] [PASSED] 37 VFs
[15:33:38] [PASSED] 38 VFs
[15:33:38] [PASSED] 39 VFs
[15:33:38] [PASSED] 40 VFs
[15:33:38] [PASSED] 41 VFs
[15:33:38] [PASSED] 42 VFs
[15:33:38] [PASSED] 43 VFs
[15:33:38] [PASSED] 44 VFs
[15:33:38] [PASSED] 45 VFs
[15:33:38] [PASSED] 46 VFs
[15:33:38] [PASSED] 47 VFs
[15:33:38] [PASSED] 48 VFs
[15:33:38] [PASSED] 49 VFs
[15:33:38] [PASSED] 50 VFs
[15:33:38] [PASSED] 51 VFs
[15:33:38] [PASSED] 52 VFs
[15:33:38] [PASSED] 53 VFs
[15:33:38] [PASSED] 54 VFs
[15:33:38] [PASSED] 55 VFs
[15:33:38] [PASSED] 56 VFs
[15:33:38] [PASSED] 57 VFs
[15:33:38] [PASSED] 58 VFs
[15:33:38] [PASSED] 59 VFs
[15:33:38] [PASSED] 60 VFs
[15:33:38] [PASSED] 61 VFs
[15:33:38] [PASSED] 62 VFs
[15:33:38] [PASSED] 63 VFs
[15:33:38] ================== [PASSED] fair_contexts ==================
[15:33:38] ===================== fair_doorbells ======================
[15:33:38] [PASSED] 1 VF
[15:33:38] [PASSED] 2 VFs
[15:33:38] [PASSED] 3 VFs
[15:33:38] [PASSED] 4 VFs
[15:33:38] [PASSED] 5 VFs
[15:33:38] [PASSED] 6 VFs
[15:33:38] [PASSED] 7 VFs
[15:33:38] [PASSED] 8 VFs
[15:33:38] [PASSED] 9 VFs
[15:33:38] [PASSED] 10 VFs
[15:33:38] [PASSED] 11 VFs
[15:33:38] [PASSED] 12 VFs
[15:33:38] [PASSED] 13 VFs
[15:33:38] [PASSED] 14 VFs
[15:33:38] [PASSED] 15 VFs
[15:33:38] [PASSED] 16 VFs
[15:33:38] [PASSED] 17 VFs
[15:33:38] [PASSED] 18 VFs
[15:33:38] [PASSED] 19 VFs
[15:33:38] [PASSED] 20 VFs
[15:33:38] [PASSED] 21 VFs
[15:33:38] [PASSED] 22 VFs
[15:33:38] [PASSED] 23 VFs
[15:33:38] [PASSED] 24 VFs
[15:33:38] [PASSED] 25 VFs
[15:33:38] [PASSED] 26 VFs
[15:33:38] [PASSED] 27 VFs
[15:33:38] [PASSED] 28 VFs
[15:33:38] [PASSED] 29 VFs
[15:33:38] [PASSED] 30 VFs
[15:33:38] [PASSED] 31 VFs
[15:33:38] [PASSED] 32 VFs
[15:33:38] [PASSED] 33 VFs
[15:33:38] [PASSED] 34 VFs
[15:33:38] [PASSED] 35 VFs
[15:33:38] [PASSED] 36 VFs
[15:33:38] [PASSED] 37 VFs
[15:33:38] [PASSED] 38 VFs
[15:33:38] [PASSED] 39 VFs
[15:33:38] [PASSED] 40 VFs
[15:33:38] [PASSED] 41 VFs
[15:33:38] [PASSED] 42 VFs
[15:33:38] [PASSED] 43 VFs
[15:33:38] [PASSED] 44 VFs
[15:33:38] [PASSED] 45 VFs
[15:33:38] [PASSED] 46 VFs
[15:33:38] [PASSED] 47 VFs
[15:33:38] [PASSED] 48 VFs
[15:33:38] [PASSED] 49 VFs
[15:33:38] [PASSED] 50 VFs
[15:33:38] [PASSED] 51 VFs
[15:33:38] [PASSED] 52 VFs
[15:33:38] [PASSED] 53 VFs
[15:33:38] [PASSED] 54 VFs
[15:33:38] [PASSED] 55 VFs
[15:33:38] [PASSED] 56 VFs
[15:33:38] [PASSED] 57 VFs
[15:33:38] [PASSED] 58 VFs
[15:33:38] [PASSED] 59 VFs
[15:33:38] [PASSED] 60 VFs
[15:33:38] [PASSED] 61 VFs
[15:33:38] [PASSED] 62 VFs
[15:33:38] [PASSED] 63 VFs
[15:33:38] ================= [PASSED] fair_doorbells ==================
[15:33:38] ======================== fair_ggtt ========================
[15:33:38] [PASSED] 1 VF
[15:33:38] [PASSED] 2 VFs
[15:33:38] [PASSED] 3 VFs
[15:33:38] [PASSED] 4 VFs
[15:33:38] [PASSED] 5 VFs
[15:33:38] [PASSED] 6 VFs
[15:33:38] [PASSED] 7 VFs
[15:33:38] [PASSED] 8 VFs
[15:33:38] [PASSED] 9 VFs
[15:33:38] [PASSED] 10 VFs
[15:33:38] [PASSED] 11 VFs
[15:33:38] [PASSED] 12 VFs
[15:33:38] [PASSED] 13 VFs
[15:33:38] [PASSED] 14 VFs
[15:33:38] [PASSED] 15 VFs
[15:33:38] [PASSED] 16 VFs
[15:33:38] [PASSED] 17 VFs
[15:33:38] [PASSED] 18 VFs
[15:33:38] [PASSED] 19 VFs
[15:33:38] [PASSED] 20 VFs
[15:33:38] [PASSED] 21 VFs
[15:33:38] [PASSED] 22 VFs
[15:33:38] [PASSED] 23 VFs
[15:33:38] [PASSED] 24 VFs
[15:33:38] [PASSED] 25 VFs
[15:33:38] [PASSED] 26 VFs
[15:33:38] [PASSED] 27 VFs
[15:33:38] [PASSED] 28 VFs
[15:33:38] [PASSED] 29 VFs
[15:33:38] [PASSED] 30 VFs
[15:33:38] [PASSED] 31 VFs
[15:33:38] [PASSED] 32 VFs
[15:33:38] [PASSED] 33 VFs
[15:33:38] [PASSED] 34 VFs
[15:33:38] [PASSED] 35 VFs
[15:33:38] [PASSED] 36 VFs
[15:33:38] [PASSED] 37 VFs
[15:33:38] [PASSED] 38 VFs
[15:33:38] [PASSED] 39 VFs
[15:33:38] [PASSED] 40 VFs
[15:33:38] [PASSED] 41 VFs
[15:33:38] [PASSED] 42 VFs
[15:33:38] [PASSED] 43 VFs
[15:33:38] [PASSED] 44 VFs
[15:33:38] [PASSED] 45 VFs
[15:33:38] [PASSED] 46 VFs
[15:33:38] [PASSED] 47 VFs
[15:33:38] [PASSED] 48 VFs
[15:33:38] [PASSED] 49 VFs
[15:33:38] [PASSED] 50 VFs
[15:33:38] [PASSED] 51 VFs
[15:33:38] [PASSED] 52 VFs
[15:33:38] [PASSED] 53 VFs
[15:33:38] [PASSED] 54 VFs
[15:33:38] [PASSED] 55 VFs
[15:33:38] [PASSED] 56 VFs
[15:33:38] [PASSED] 57 VFs
[15:33:38] [PASSED] 58 VFs
[15:33:38] [PASSED] 59 VFs
[15:33:38] [PASSED] 60 VFs
[15:33:38] [PASSED] 61 VFs
[15:33:38] [PASSED] 62 VFs
[15:33:38] [PASSED] 63 VFs
[15:33:38] ==================== [PASSED] fair_ggtt ====================
[15:33:38] ================== [PASSED] pf_gt_config ===================
[15:33:38] ===================== lmtt (1 subtest) =====================
[15:33:38] ======================== test_ops =========================
[15:33:38] [PASSED] 2-level
[15:33:38] [PASSED] multi-level
[15:33:38] ==================== [PASSED] test_ops =====================
[15:33:38] ====================== [PASSED] lmtt =======================
[15:33:38] ================= pf_service (11 subtests) =================
[15:33:38] [PASSED] pf_negotiate_any
[15:33:38] [PASSED] pf_negotiate_base_match
[15:33:38] [PASSED] pf_negotiate_base_newer
[15:33:38] [PASSED] pf_negotiate_base_next
[15:33:38] [SKIPPED] pf_negotiate_base_older
[15:33:38] [PASSED] pf_negotiate_base_prev
[15:33:38] [PASSED] pf_negotiate_latest_match
[15:33:38] [PASSED] pf_negotiate_latest_newer
[15:33:38] [PASSED] pf_negotiate_latest_next
[15:33:38] [SKIPPED] pf_negotiate_latest_older
[15:33:38] [SKIPPED] pf_negotiate_latest_prev
[15:33:38] =================== [PASSED] pf_service ====================
[15:33:38] ================= xe_guc_g2g (2 subtests) ==================
[15:33:38] ============== xe_live_guc_g2g_kunit_default ==============
[15:33:38] ========= [SKIPPED] xe_live_guc_g2g_kunit_default ==========
[15:33:38] ============== xe_live_guc_g2g_kunit_allmem ===============
[15:33:38] ========== [SKIPPED] xe_live_guc_g2g_kunit_allmem ==========
[15:33:38] =================== [SKIPPED] xe_guc_g2g ===================
[15:33:38] =================== xe_mocs (2 subtests) ===================
[15:33:38] ================ xe_live_mocs_kernel_kunit ================
[15:33:38] =========== [SKIPPED] xe_live_mocs_kernel_kunit ============
[15:33:38] ================ xe_live_mocs_reset_kunit =================
[15:33:38] ============ [SKIPPED] xe_live_mocs_reset_kunit ============
[15:33:38] ==================== [SKIPPED] xe_mocs =====================
[15:33:38] ================= xe_migrate (2 subtests) ==================
[15:33:38] ================= xe_migrate_sanity_kunit =================
[15:33:38] ============ [SKIPPED] xe_migrate_sanity_kunit =============
[15:33:38] ================== xe_validate_ccs_kunit ==================
[15:33:38] ============= [SKIPPED] xe_validate_ccs_kunit ==============
[15:33:38] =================== [SKIPPED] xe_migrate ===================
[15:33:38] ================== xe_dma_buf (1 subtest) ==================
[15:33:38] ==================== xe_dma_buf_kunit =====================
[15:33:38] ================ [SKIPPED] xe_dma_buf_kunit ================
[15:33:38] =================== [SKIPPED] xe_dma_buf ===================
[15:33:38] ================= xe_bo_shrink (1 subtest) =================
[15:33:38] =================== xe_bo_shrink_kunit ====================
[15:33:38] =============== [SKIPPED] xe_bo_shrink_kunit ===============
[15:33:38] ================== [SKIPPED] xe_bo_shrink ==================
[15:33:38] ==================== xe_bo (2 subtests) ====================
[15:33:38] ================== xe_ccs_migrate_kunit ===================
[15:33:38] ============== [SKIPPED] xe_ccs_migrate_kunit ==============
[15:33:38] ==================== xe_bo_evict_kunit ====================
[15:33:38] =============== [SKIPPED] xe_bo_evict_kunit ================
[15:33:38] ===================== [SKIPPED] xe_bo ======================
[15:33:38] ==================== args (13 subtests) ====================
[15:33:38] [PASSED] count_args_test
[15:33:38] [PASSED] call_args_example
[15:33:38] [PASSED] call_args_test
[15:33:38] [PASSED] drop_first_arg_example
[15:33:38] [PASSED] drop_first_arg_test
[15:33:38] [PASSED] first_arg_example
[15:33:38] [PASSED] first_arg_test
[15:33:38] [PASSED] last_arg_example
[15:33:38] [PASSED] last_arg_test
[15:33:38] [PASSED] pick_arg_example
[15:33:38] [PASSED] if_args_example
[15:33:38] [PASSED] if_args_test
[15:33:38] [PASSED] sep_comma_example
[15:33:38] ====================== [PASSED] args =======================
[15:33:38] =================== xe_pci (3 subtests) ====================
[15:33:38] ==================== check_graphics_ip ====================
[15:33:38] [PASSED] 12.00 Xe_LP
[15:33:38] [PASSED] 12.10 Xe_LP+
[15:33:38] [PASSED] 12.55 Xe_HPG
[15:33:38] [PASSED] 12.60 Xe_HPC
[15:33:38] [PASSED] 12.70 Xe_LPG
[15:33:38] [PASSED] 12.71 Xe_LPG
[15:33:38] [PASSED] 12.74 Xe_LPG+
[15:33:38] [PASSED] 20.01 Xe2_HPG
[15:33:38] [PASSED] 20.02 Xe2_HPG
[15:33:38] [PASSED] 20.04 Xe2_LPG
[15:33:38] [PASSED] 30.00 Xe3_LPG
[15:33:38] [PASSED] 30.01 Xe3_LPG
[15:33:38] [PASSED] 30.03 Xe3_LPG
[15:33:38] [PASSED] 30.04 Xe3_LPG
[15:33:38] [PASSED] 30.05 Xe3_LPG
[15:33:38] [PASSED] 35.11 Xe3p_XPC
[15:33:38] ================ [PASSED] check_graphics_ip ================
[15:33:38] ===================== check_media_ip ======================
[15:33:38] [PASSED] 12.00 Xe_M
[15:33:38] [PASSED] 12.55 Xe_HPM
[15:33:38] [PASSED] 13.00 Xe_LPM+
[15:33:38] [PASSED] 13.01 Xe2_HPM
[15:33:38] [PASSED] 20.00 Xe2_LPM
[15:33:38] [PASSED] 30.00 Xe3_LPM
[15:33:38] [PASSED] 30.02 Xe3_LPM
[15:33:38] [PASSED] 35.00 Xe3p_LPM
[15:33:38] [PASSED] 35.03 Xe3p_HPM
[15:33:38] ================= [PASSED] check_media_ip ==================
[15:33:38] =================== check_platform_desc ===================
[15:33:38] [PASSED] 0x9A60 (TIGERLAKE)
[15:33:38] [PASSED] 0x9A68 (TIGERLAKE)
[15:33:38] [PASSED] 0x9A70 (TIGERLAKE)
[15:33:38] [PASSED] 0x9A40 (TIGERLAKE)
[15:33:38] [PASSED] 0x9A49 (TIGERLAKE)
[15:33:38] [PASSED] 0x9A59 (TIGERLAKE)
[15:33:38] [PASSED] 0x9A78 (TIGERLAKE)
[15:33:38] [PASSED] 0x9AC0 (TIGERLAKE)
[15:33:38] [PASSED] 0x9AC9 (TIGERLAKE)
[15:33:38] [PASSED] 0x9AD9 (TIGERLAKE)
[15:33:38] [PASSED] 0x9AF8 (TIGERLAKE)
[15:33:38] [PASSED] 0x4C80 (ROCKETLAKE)
[15:33:38] [PASSED] 0x4C8A (ROCKETLAKE)
[15:33:38] [PASSED] 0x4C8B (ROCKETLAKE)
[15:33:38] [PASSED] 0x4C8C (ROCKETLAKE)
[15:33:38] [PASSED] 0x4C90 (ROCKETLAKE)
[15:33:38] [PASSED] 0x4C9A (ROCKETLAKE)
[15:33:38] [PASSED] 0x4680 (ALDERLAKE_S)
[15:33:38] [PASSED] 0x4682 (ALDERLAKE_S)
[15:33:38] [PASSED] 0x4688 (ALDERLAKE_S)
[15:33:38] [PASSED] 0x468A (ALDERLAKE_S)
[15:33:38] [PASSED] 0x468B (ALDERLAKE_S)
[15:33:38] [PASSED] 0x4690 (ALDERLAKE_S)
[15:33:38] [PASSED] 0x4692 (ALDERLAKE_S)
[15:33:38] [PASSED] 0x4693 (ALDERLAKE_S)
[15:33:38] [PASSED] 0x46A0 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46A1 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46A2 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46A3 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46A6 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46A8 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46AA (ALDERLAKE_P)
[15:33:38] [PASSED] 0x462A (ALDERLAKE_P)
[15:33:38] [PASSED] 0x4626 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x4628 (ALDERLAKE_P)
stty: 'standard input': Inappropriate ioctl for device
[15:33:38] [PASSED] 0x46B0 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46B1 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46B2 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46B3 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46C0 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46C1 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46C2 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46C3 (ALDERLAKE_P)
[15:33:38] [PASSED] 0x46D0 (ALDERLAKE_N)
[15:33:38] [PASSED] 0x46D1 (ALDERLAKE_N)
[15:33:38] [PASSED] 0x46D2 (ALDERLAKE_N)
[15:33:38] [PASSED] 0x46D3 (ALDERLAKE_N)
[15:33:38] [PASSED] 0x46D4 (ALDERLAKE_N)
[15:33:38] [PASSED] 0xA721 (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7A1 (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7A9 (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7AC (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7AD (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA720 (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7A0 (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7A8 (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7AA (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA7AB (ALDERLAKE_P)
[15:33:38] [PASSED] 0xA780 (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA781 (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA782 (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA783 (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA788 (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA789 (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA78A (ALDERLAKE_S)
[15:33:38] [PASSED] 0xA78B (ALDERLAKE_S)
[15:33:38] [PASSED] 0x4905 (DG1)
[15:33:38] [PASSED] 0x4906 (DG1)
[15:33:38] [PASSED] 0x4907 (DG1)
[15:33:38] [PASSED] 0x4908 (DG1)
[15:33:38] [PASSED] 0x4909 (DG1)
[15:33:38] [PASSED] 0x56C0 (DG2)
[15:33:38] [PASSED] 0x56C2 (DG2)
[15:33:38] [PASSED] 0x56C1 (DG2)
[15:33:38] [PASSED] 0x7D51 (METEORLAKE)
[15:33:38] [PASSED] 0x7DD1 (METEORLAKE)
[15:33:38] [PASSED] 0x7D41 (METEORLAKE)
[15:33:38] [PASSED] 0x7D67 (METEORLAKE)
[15:33:38] [PASSED] 0xB640 (METEORLAKE)
[15:33:38] [PASSED] 0x56A0 (DG2)
[15:33:38] [PASSED] 0x56A1 (DG2)
[15:33:38] [PASSED] 0x56A2 (DG2)
[15:33:38] [PASSED] 0x56BE (DG2)
[15:33:38] [PASSED] 0x56BF (DG2)
[15:33:38] [PASSED] 0x5690 (DG2)
[15:33:38] [PASSED] 0x5691 (DG2)
[15:33:38] [PASSED] 0x5692 (DG2)
[15:33:38] [PASSED] 0x56A5 (DG2)
[15:33:38] [PASSED] 0x56A6 (DG2)
[15:33:38] [PASSED] 0x56B0 (DG2)
[15:33:38] [PASSED] 0x56B1 (DG2)
[15:33:38] [PASSED] 0x56BA (DG2)
[15:33:38] [PASSED] 0x56BB (DG2)
[15:33:38] [PASSED] 0x56BC (DG2)
[15:33:38] [PASSED] 0x56BD (DG2)
[15:33:38] [PASSED] 0x5693 (DG2)
[15:33:38] [PASSED] 0x5694 (DG2)
[15:33:38] [PASSED] 0x5695 (DG2)
[15:33:38] [PASSED] 0x56A3 (DG2)
[15:33:38] [PASSED] 0x56A4 (DG2)
[15:33:38] [PASSED] 0x56B2 (DG2)
[15:33:38] [PASSED] 0x56B3 (DG2)
[15:33:38] [PASSED] 0x5696 (DG2)
[15:33:38] [PASSED] 0x5697 (DG2)
[15:33:38] [PASSED] 0xB69 (PVC)
[15:33:38] [PASSED] 0xB6E (PVC)
[15:33:38] [PASSED] 0xBD4 (PVC)
[15:33:38] [PASSED] 0xBD5 (PVC)
[15:33:38] [PASSED] 0xBD6 (PVC)
[15:33:38] [PASSED] 0xBD7 (PVC)
[15:33:38] [PASSED] 0xBD8 (PVC)
[15:33:38] [PASSED] 0xBD9 (PVC)
[15:33:38] [PASSED] 0xBDA (PVC)
[15:33:38] [PASSED] 0xBDB (PVC)
[15:33:38] [PASSED] 0xBE0 (PVC)
[15:33:38] [PASSED] 0xBE1 (PVC)
[15:33:38] [PASSED] 0xBE5 (PVC)
[15:33:38] [PASSED] 0x7D40 (METEORLAKE)
[15:33:38] [PASSED] 0x7D45 (METEORLAKE)
[15:33:38] [PASSED] 0x7D55 (METEORLAKE)
[15:33:38] [PASSED] 0x7D60 (METEORLAKE)
[15:33:38] [PASSED] 0x7DD5 (METEORLAKE)
[15:33:38] [PASSED] 0x6420 (LUNARLAKE)
[15:33:38] [PASSED] 0x64A0 (LUNARLAKE)
[15:33:38] [PASSED] 0x64B0 (LUNARLAKE)
[15:33:38] [PASSED] 0xE202 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE209 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE20B (BATTLEMAGE)
[15:33:38] [PASSED] 0xE20C (BATTLEMAGE)
[15:33:38] [PASSED] 0xE20D (BATTLEMAGE)
[15:33:38] [PASSED] 0xE210 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE211 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE212 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE216 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE220 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE221 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE222 (BATTLEMAGE)
[15:33:38] [PASSED] 0xE223 (BATTLEMAGE)
[15:33:38] [PASSED] 0xB080 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB081 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB082 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB083 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB084 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB085 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB086 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB087 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB08F (PANTHERLAKE)
[15:33:38] [PASSED] 0xB090 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB0A0 (PANTHERLAKE)
[15:33:38] [PASSED] 0xB0B0 (PANTHERLAKE)
[15:33:38] [PASSED] 0xFD80 (PANTHERLAKE)
[15:33:38] [PASSED] 0xFD81 (PANTHERLAKE)
[15:33:38] [PASSED] 0xD740 (NOVALAKE_S)
[15:33:38] [PASSED] 0xD741 (NOVALAKE_S)
[15:33:38] [PASSED] 0xD742 (NOVALAKE_S)
[15:33:38] [PASSED] 0xD743 (NOVALAKE_S)
[15:33:38] [PASSED] 0xD744 (NOVALAKE_S)
[15:33:38] [PASSED] 0xD745 (NOVALAKE_S)
[15:33:38] [PASSED] 0x674C (CRESCENTISLAND)
[15:33:38] =============== [PASSED] check_platform_desc ===============
[15:33:38] ===================== [PASSED] xe_pci ======================
[15:33:38] =================== xe_rtp (2 subtests) ====================
[15:33:38] =============== xe_rtp_process_to_sr_tests ================
[15:33:38] [PASSED] coalesce-same-reg
[15:33:38] [PASSED] no-match-no-add
[15:33:38] [PASSED] match-or
[15:33:38] [PASSED] match-or-xfail
[15:33:38] [PASSED] no-match-no-add-multiple-rules
[15:33:38] [PASSED] two-regs-two-entries
[15:33:38] [PASSED] clr-one-set-other
[15:33:38] [PASSED] set-field
[15:33:38] [PASSED] conflict-duplicate
[15:33:38] [PASSED] conflict-not-disjoint
[15:33:38] [PASSED] conflict-reg-type
[15:33:38] =========== [PASSED] xe_rtp_process_to_sr_tests ============
[15:33:38] ================== xe_rtp_process_tests ===================
[15:33:38] [PASSED] active1
[15:33:38] [PASSED] active2
[15:33:38] [PASSED] active-inactive
[15:33:38] [PASSED] inactive-active
[15:33:38] [PASSED] inactive-1st_or_active-inactive
[15:33:38] [PASSED] inactive-2nd_or_active-inactive
[15:33:38] [PASSED] inactive-last_or_active-inactive
[15:33:38] [PASSED] inactive-no_or_active-inactive
[15:33:38] ============== [PASSED] xe_rtp_process_tests ===============
[15:33:38] ===================== [PASSED] xe_rtp ======================
[15:33:38] ==================== xe_wa (1 subtest) =====================
[15:33:38] ======================== xe_wa_gt =========================
[15:33:38] [PASSED] TIGERLAKE B0
[15:33:38] [PASSED] DG1 A0
[15:33:38] [PASSED] DG1 B0
[15:33:38] [PASSED] ALDERLAKE_S A0
[15:33:38] [PASSED] ALDERLAKE_S B0
[15:33:38] [PASSED] ALDERLAKE_S C0
[15:33:38] [PASSED] ALDERLAKE_S D0
[15:33:38] [PASSED] ALDERLAKE_P A0
[15:33:38] [PASSED] ALDERLAKE_P B0
[15:33:38] [PASSED] ALDERLAKE_P C0
[15:33:38] [PASSED] ALDERLAKE_S RPLS D0
[15:33:38] [PASSED] ALDERLAKE_P RPLU E0
[15:33:38] [PASSED] DG2 G10 C0
[15:33:38] [PASSED] DG2 G11 B1
[15:33:38] [PASSED] DG2 G12 A1
[15:33:38] [PASSED] METEORLAKE 12.70(Xe_LPG) A0 13.00(Xe_LPM+) A0
[15:33:38] [PASSED] METEORLAKE 12.71(Xe_LPG) A0 13.00(Xe_LPM+) A0
[15:33:38] [PASSED] METEORLAKE 12.74(Xe_LPG+) A0 13.00(Xe_LPM+) A0
[15:33:38] [PASSED] LUNARLAKE 20.04(Xe2_LPG) A0 20.00(Xe2_LPM) A0
[15:33:38] [PASSED] LUNARLAKE 20.04(Xe2_LPG) B0 20.00(Xe2_LPM) A0
[15:33:38] [PASSED] BATTLEMAGE 20.01(Xe2_HPG) A0 13.01(Xe2_HPM) A1
[15:33:38] [PASSED] PANTHERLAKE 30.00(Xe3_LPG) A0 30.00(Xe3_LPM) A0
[15:33:38] ==================== [PASSED] xe_wa_gt =====================
[15:33:38] ====================== [PASSED] xe_wa ======================
[15:33:38] ============================================================
[15:33:38] Testing complete. Ran 512 tests: passed: 494, skipped: 18
[15:33:38] Elapsed time: 37.125s total, 4.273s configuring, 32.336s building, 0.482s running
+ /kernel/tools/testing/kunit/kunit.py run --kunitconfig /kernel/drivers/gpu/drm/tests/.kunitconfig
[15:33:39] Configuring KUnit Kernel ...
Regenerating .config ...
Populating config with:
$ make ARCH=um O=.kunit olddefconfig
[15:33:40] Building KUnit Kernel ...
Populating config with:
$ make ARCH=um O=.kunit olddefconfig
Building with:
$ make all compile_commands.json scripts_gdb ARCH=um O=.kunit --jobs=48
[15:34:06] Starting KUnit Kernel (1/1)...
[15:34:06] ============================================================
Running tests with:
$ .kunit/linux kunit.enable=1 mem=1G console=tty kunit_shutdown=halt
[15:34:06] ============ drm_test_pick_cmdline (2 subtests) ============
[15:34:06] [PASSED] drm_test_pick_cmdline_res_1920_1080_60
[15:34:06] =============== drm_test_pick_cmdline_named ===============
[15:34:06] [PASSED] NTSC
[15:34:06] [PASSED] NTSC-J
[15:34:06] [PASSED] PAL
[15:34:06] [PASSED] PAL-M
[15:34:06] =========== [PASSED] drm_test_pick_cmdline_named ===========
[15:34:06] ============== [PASSED] drm_test_pick_cmdline ==============
[15:34:06] == drm_test_atomic_get_connector_for_encoder (1 subtest) ===
[15:34:06] [PASSED] drm_test_drm_atomic_get_connector_for_encoder
[15:34:06] ==== [PASSED] drm_test_atomic_get_connector_for_encoder ====
[15:34:06] =========== drm_validate_clone_mode (2 subtests) ===========
[15:34:06] ============== drm_test_check_in_clone_mode ===============
[15:34:06] [PASSED] in_clone_mode
[15:34:06] [PASSED] not_in_clone_mode
[15:34:06] ========== [PASSED] drm_test_check_in_clone_mode ===========
[15:34:06] =============== drm_test_check_valid_clones ===============
[15:34:06] [PASSED] not_in_clone_mode
[15:34:06] [PASSED] valid_clone
[15:34:06] [PASSED] invalid_clone
[15:34:06] =========== [PASSED] drm_test_check_valid_clones ===========
[15:34:06] ============= [PASSED] drm_validate_clone_mode =============
[15:34:06] ============= drm_validate_modeset (1 subtest) =============
[15:34:06] [PASSED] drm_test_check_connector_changed_modeset
[15:34:06] ============== [PASSED] drm_validate_modeset ===============
[15:34:06] ====== drm_test_bridge_get_current_state (2 subtests) ======
[15:34:06] [PASSED] drm_test_drm_bridge_get_current_state_atomic
[15:34:06] [PASSED] drm_test_drm_bridge_get_current_state_legacy
[15:34:06] ======== [PASSED] drm_test_bridge_get_current_state ========
[15:34:06] ====== drm_test_bridge_helper_reset_crtc (3 subtests) ======
[15:34:06] [PASSED] drm_test_drm_bridge_helper_reset_crtc_atomic
[15:34:06] [PASSED] drm_test_drm_bridge_helper_reset_crtc_atomic_disabled
[15:34:06] [PASSED] drm_test_drm_bridge_helper_reset_crtc_legacy
[15:34:06] ======== [PASSED] drm_test_bridge_helper_reset_crtc ========
[15:34:06] ============== drm_bridge_alloc (2 subtests) ===============
[15:34:06] [PASSED] drm_test_drm_bridge_alloc_basic
[15:34:06] [PASSED] drm_test_drm_bridge_alloc_get_put
[15:34:06] ================ [PASSED] drm_bridge_alloc =================
[15:34:06] ================== drm_buddy (9 subtests) ==================
[15:34:06] [PASSED] drm_test_buddy_alloc_limit
[15:34:06] [PASSED] drm_test_buddy_alloc_optimistic
[15:34:06] [PASSED] drm_test_buddy_alloc_pessimistic
[15:34:06] [PASSED] drm_test_buddy_alloc_pathological
[15:34:06] [PASSED] drm_test_buddy_alloc_contiguous
[15:34:06] [PASSED] drm_test_buddy_alloc_clear
[15:34:06] [PASSED] drm_test_buddy_alloc_range_bias
[15:34:06] [PASSED] drm_test_buddy_fragmentation_performance
[15:34:06] [PASSED] drm_test_buddy_alloc_exceeds_max_order
[15:34:06] ==================== [PASSED] drm_buddy ====================
[15:34:06] ============= drm_cmdline_parser (40 subtests) =============
[15:34:06] [PASSED] drm_test_cmdline_force_d_only
[15:34:06] [PASSED] drm_test_cmdline_force_D_only_dvi
[15:34:06] [PASSED] drm_test_cmdline_force_D_only_hdmi
[15:34:06] [PASSED] drm_test_cmdline_force_D_only_not_digital
[15:34:06] [PASSED] drm_test_cmdline_force_e_only
[15:34:06] [PASSED] drm_test_cmdline_res
[15:34:06] [PASSED] drm_test_cmdline_res_vesa
[15:34:06] [PASSED] drm_test_cmdline_res_vesa_rblank
[15:34:06] [PASSED] drm_test_cmdline_res_rblank
[15:34:06] [PASSED] drm_test_cmdline_res_bpp
[15:34:06] [PASSED] drm_test_cmdline_res_refresh
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_interlaced
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_margins
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_force_off
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_force_on
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_force_on_analog
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_force_on_digital
[15:34:06] [PASSED] drm_test_cmdline_res_bpp_refresh_interlaced_margins_force_on
[15:34:06] [PASSED] drm_test_cmdline_res_margins_force_on
[15:34:06] [PASSED] drm_test_cmdline_res_vesa_margins
[15:34:06] [PASSED] drm_test_cmdline_name
[15:34:06] [PASSED] drm_test_cmdline_name_bpp
[15:34:06] [PASSED] drm_test_cmdline_name_option
[15:34:06] [PASSED] drm_test_cmdline_name_bpp_option
[15:34:06] [PASSED] drm_test_cmdline_rotate_0
[15:34:06] [PASSED] drm_test_cmdline_rotate_90
[15:34:06] [PASSED] drm_test_cmdline_rotate_180
[15:34:06] [PASSED] drm_test_cmdline_rotate_270
[15:34:06] [PASSED] drm_test_cmdline_hmirror
[15:34:06] [PASSED] drm_test_cmdline_vmirror
[15:34:06] [PASSED] drm_test_cmdline_margin_options
[15:34:06] [PASSED] drm_test_cmdline_multiple_options
[15:34:06] [PASSED] drm_test_cmdline_bpp_extra_and_option
[15:34:06] [PASSED] drm_test_cmdline_extra_and_option
[15:34:06] [PASSED] drm_test_cmdline_freestanding_options
[15:34:06] [PASSED] drm_test_cmdline_freestanding_force_e_and_options
[15:34:06] [PASSED] drm_test_cmdline_panel_orientation
[15:34:06] ================ drm_test_cmdline_invalid =================
[15:34:06] [PASSED] margin_only
[15:34:06] [PASSED] interlace_only
[15:34:06] [PASSED] res_missing_x
[15:34:06] [PASSED] res_missing_y
[15:34:06] [PASSED] res_bad_y
[15:34:06] [PASSED] res_missing_y_bpp
[15:34:06] [PASSED] res_bad_bpp
[15:34:06] [PASSED] res_bad_refresh
[15:34:06] [PASSED] res_bpp_refresh_force_on_off
[15:34:06] [PASSED] res_invalid_mode
[15:34:06] [PASSED] res_bpp_wrong_place_mode
[15:34:06] [PASSED] name_bpp_refresh
[15:34:06] [PASSED] name_refresh
[15:34:06] [PASSED] name_refresh_wrong_mode
[15:34:06] [PASSED] name_refresh_invalid_mode
[15:34:06] [PASSED] rotate_multiple
[15:34:06] [PASSED] rotate_invalid_val
[15:34:06] [PASSED] rotate_truncated
[15:34:06] [PASSED] invalid_option
[15:34:06] [PASSED] invalid_tv_option
[15:34:06] [PASSED] truncated_tv_option
[15:34:06] ============ [PASSED] drm_test_cmdline_invalid =============
[15:34:06] =============== drm_test_cmdline_tv_options ===============
[15:34:06] [PASSED] NTSC
[15:34:06] [PASSED] NTSC_443
[15:34:06] [PASSED] NTSC_J
[15:34:06] [PASSED] PAL
[15:34:06] [PASSED] PAL_M
[15:34:06] [PASSED] PAL_N
[15:34:06] [PASSED] SECAM
[15:34:06] [PASSED] MONO_525
[15:34:06] [PASSED] MONO_625
[15:34:06] =========== [PASSED] drm_test_cmdline_tv_options ===========
[15:34:06] =============== [PASSED] drm_cmdline_parser ================
[15:34:06] ========== drmm_connector_hdmi_init (20 subtests) ==========
[15:34:06] [PASSED] drm_test_connector_hdmi_init_valid
[15:34:06] [PASSED] drm_test_connector_hdmi_init_bpc_8
[15:34:06] [PASSED] drm_test_connector_hdmi_init_bpc_10
[15:34:06] [PASSED] drm_test_connector_hdmi_init_bpc_12
[15:34:06] [PASSED] drm_test_connector_hdmi_init_bpc_invalid
[15:34:06] [PASSED] drm_test_connector_hdmi_init_bpc_null
[15:34:06] [PASSED] drm_test_connector_hdmi_init_formats_empty
[15:34:06] [PASSED] drm_test_connector_hdmi_init_formats_no_rgb
[15:34:06] === drm_test_connector_hdmi_init_formats_yuv420_allowed ===
[15:34:06] [PASSED] supported_formats=0x9 yuv420_allowed=1
[15:34:06] [PASSED] supported_formats=0x9 yuv420_allowed=0
[15:34:06] [PASSED] supported_formats=0x3 yuv420_allowed=1
[15:34:06] [PASSED] supported_formats=0x3 yuv420_allowed=0
[15:34:06] === [PASSED] drm_test_connector_hdmi_init_formats_yuv420_allowed ===
[15:34:06] [PASSED] drm_test_connector_hdmi_init_null_ddc
[15:34:06] [PASSED] drm_test_connector_hdmi_init_null_product
[15:34:06] [PASSED] drm_test_connector_hdmi_init_null_vendor
[15:34:06] [PASSED] drm_test_connector_hdmi_init_product_length_exact
[15:34:06] [PASSED] drm_test_connector_hdmi_init_product_length_too_long
[15:34:06] [PASSED] drm_test_connector_hdmi_init_product_valid
[15:34:06] [PASSED] drm_test_connector_hdmi_init_vendor_length_exact
[15:34:06] [PASSED] drm_test_connector_hdmi_init_vendor_length_too_long
[15:34:06] [PASSED] drm_test_connector_hdmi_init_vendor_valid
[15:34:06] ========= drm_test_connector_hdmi_init_type_valid =========
[15:34:06] [PASSED] HDMI-A
[15:34:06] [PASSED] HDMI-B
[15:34:06] ===== [PASSED] drm_test_connector_hdmi_init_type_valid =====
[15:34:06] ======== drm_test_connector_hdmi_init_type_invalid ========
[15:34:06] [PASSED] Unknown
[15:34:06] [PASSED] VGA
[15:34:06] [PASSED] DVI-I
[15:34:06] [PASSED] DVI-D
[15:34:06] [PASSED] DVI-A
[15:34:06] [PASSED] Composite
[15:34:06] [PASSED] SVIDEO
[15:34:06] [PASSED] LVDS
[15:34:06] [PASSED] Component
[15:34:06] [PASSED] DIN
[15:34:06] [PASSED] DP
[15:34:06] [PASSED] TV
[15:34:06] [PASSED] eDP
[15:34:06] [PASSED] Virtual
[15:34:06] [PASSED] DSI
[15:34:06] [PASSED] DPI
[15:34:06] [PASSED] Writeback
[15:34:06] [PASSED] SPI
[15:34:06] [PASSED] USB
[15:34:06] ==== [PASSED] drm_test_connector_hdmi_init_type_invalid ====
[15:34:06] ============ [PASSED] drmm_connector_hdmi_init =============
[15:34:06] ============= drmm_connector_init (3 subtests) =============
[15:34:06] [PASSED] drm_test_drmm_connector_init
[15:34:06] [PASSED] drm_test_drmm_connector_init_null_ddc
[15:34:06] ========= drm_test_drmm_connector_init_type_valid =========
[15:34:06] [PASSED] Unknown
[15:34:06] [PASSED] VGA
[15:34:06] [PASSED] DVI-I
[15:34:06] [PASSED] DVI-D
[15:34:06] [PASSED] DVI-A
[15:34:06] [PASSED] Composite
[15:34:06] [PASSED] SVIDEO
[15:34:06] [PASSED] LVDS
[15:34:06] [PASSED] Component
[15:34:06] [PASSED] DIN
[15:34:06] [PASSED] DP
[15:34:06] [PASSED] HDMI-A
[15:34:06] [PASSED] HDMI-B
[15:34:06] [PASSED] TV
[15:34:06] [PASSED] eDP
[15:34:06] [PASSED] Virtual
[15:34:06] [PASSED] DSI
[15:34:06] [PASSED] DPI
[15:34:06] [PASSED] Writeback
[15:34:06] [PASSED] SPI
[15:34:06] [PASSED] USB
[15:34:06] ===== [PASSED] drm_test_drmm_connector_init_type_valid =====
[15:34:06] =============== [PASSED] drmm_connector_init ===============
[15:34:06] ========= drm_connector_dynamic_init (6 subtests) ==========
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_init
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_init_null_ddc
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_init_not_added
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_init_properties
[15:34:06] ===== drm_test_drm_connector_dynamic_init_type_valid ======
[15:34:06] [PASSED] Unknown
[15:34:06] [PASSED] VGA
[15:34:06] [PASSED] DVI-I
[15:34:06] [PASSED] DVI-D
[15:34:06] [PASSED] DVI-A
[15:34:06] [PASSED] Composite
[15:34:06] [PASSED] SVIDEO
[15:34:06] [PASSED] LVDS
[15:34:06] [PASSED] Component
[15:34:06] [PASSED] DIN
[15:34:06] [PASSED] DP
[15:34:06] [PASSED] HDMI-A
[15:34:06] [PASSED] HDMI-B
[15:34:06] [PASSED] TV
[15:34:06] [PASSED] eDP
[15:34:06] [PASSED] Virtual
[15:34:06] [PASSED] DSI
[15:34:06] [PASSED] DPI
[15:34:06] [PASSED] Writeback
[15:34:06] [PASSED] SPI
[15:34:06] [PASSED] USB
[15:34:06] = [PASSED] drm_test_drm_connector_dynamic_init_type_valid ==
[15:34:06] ======== drm_test_drm_connector_dynamic_init_name =========
[15:34:06] [PASSED] Unknown
[15:34:06] [PASSED] VGA
[15:34:06] [PASSED] DVI-I
[15:34:06] [PASSED] DVI-D
[15:34:06] [PASSED] DVI-A
[15:34:06] [PASSED] Composite
[15:34:06] [PASSED] SVIDEO
[15:34:06] [PASSED] LVDS
[15:34:06] [PASSED] Component
[15:34:06] [PASSED] DIN
[15:34:06] [PASSED] DP
[15:34:06] [PASSED] HDMI-A
[15:34:06] [PASSED] HDMI-B
[15:34:06] [PASSED] TV
[15:34:06] [PASSED] eDP
[15:34:06] [PASSED] Virtual
[15:34:06] [PASSED] DSI
[15:34:06] [PASSED] DPI
[15:34:06] [PASSED] Writeback
[15:34:06] [PASSED] SPI
[15:34:06] [PASSED] USB
[15:34:06] ==== [PASSED] drm_test_drm_connector_dynamic_init_name =====
[15:34:06] =========== [PASSED] drm_connector_dynamic_init ============
[15:34:06] ==== drm_connector_dynamic_register_early (4 subtests) =====
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_early_on_list
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_early_defer
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_early_no_init
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_early_no_mode_object
[15:34:06] ====== [PASSED] drm_connector_dynamic_register_early =======
[15:34:06] ======= drm_connector_dynamic_register (7 subtests) ========
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_on_list
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_no_defer
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_no_init
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_mode_object
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_sysfs
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_sysfs_name
[15:34:06] [PASSED] drm_test_drm_connector_dynamic_register_debugfs
[15:34:06] ========= [PASSED] drm_connector_dynamic_register ==========
[15:34:06] = drm_connector_attach_broadcast_rgb_property (2 subtests) =
[15:34:06] [PASSED] drm_test_drm_connector_attach_broadcast_rgb_property
[15:34:06] [PASSED] drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector
[15:34:06] === [PASSED] drm_connector_attach_broadcast_rgb_property ===
[15:34:06] ========== drm_get_tv_mode_from_name (2 subtests) ==========
[15:34:06] ========== drm_test_get_tv_mode_from_name_valid ===========
[15:34:06] [PASSED] NTSC
[15:34:06] [PASSED] NTSC-443
[15:34:06] [PASSED] NTSC-J
[15:34:06] [PASSED] PAL
[15:34:06] [PASSED] PAL-M
[15:34:06] [PASSED] PAL-N
[15:34:06] [PASSED] SECAM
[15:34:06] [PASSED] Mono
[15:34:06] ====== [PASSED] drm_test_get_tv_mode_from_name_valid =======
[15:34:06] [PASSED] drm_test_get_tv_mode_from_name_truncated
[15:34:06] ============ [PASSED] drm_get_tv_mode_from_name ============
[15:34:06] = drm_test_connector_hdmi_compute_mode_clock (12 subtests) =
[15:34:06] [PASSED] drm_test_drm_hdmi_compute_mode_clock_rgb
[15:34:06] [PASSED] drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc
[15:34:06] [PASSED] drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc_vic_1
[15:34:06] [PASSED] drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc
[15:34:06] [PASSED] drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc_vic_1
[15:34:06] [PASSED] drm_test_drm_hdmi_compute_mode_clock_rgb_double
[15:34:06] = drm_test_connector_hdmi_compute_mode_clock_yuv420_valid =
[15:34:06] [PASSED] VIC 96
[15:34:06] [PASSED] VIC 97
[15:34:06] [PASSED] VIC 101
[15:34:06] [PASSED] VIC 102
[15:34:06] [PASSED] VIC 106
[15:34:06] [PASSED] VIC 107
[15:34:06] === [PASSED] drm_test_connector_hdmi_compute_mode_clock_yuv420_valid ===
[15:34:06] [PASSED] drm_test_connector_hdmi_compute_mode_clock_yuv420_10_bpc
[15:34:06] [PASSED] drm_test_connector_hdmi_compute_mode_clock_yuv420_12_bpc
[15:34:06] [PASSED] drm_test_connector_hdmi_compute_mode_clock_yuv422_8_bpc
[15:34:06] [PASSED] drm_test_connector_hdmi_compute_mode_clock_yuv422_10_bpc
[15:34:06] [PASSED] drm_test_connector_hdmi_compute_mode_clock_yuv422_12_bpc
[15:34:06] === [PASSED] drm_test_connector_hdmi_compute_mode_clock ====
[15:34:06] == drm_hdmi_connector_get_broadcast_rgb_name (2 subtests) ==
[15:34:06] === drm_test_drm_hdmi_connector_get_broadcast_rgb_name ====
[15:34:06] [PASSED] Automatic
[15:34:06] [PASSED] Full
[15:34:06] [PASSED] Limited 16:235
[15:34:06] === [PASSED] drm_test_drm_hdmi_connector_get_broadcast_rgb_name ===
[15:34:06] [PASSED] drm_test_drm_hdmi_connector_get_broadcast_rgb_name_invalid
[15:34:06] ==== [PASSED] drm_hdmi_connector_get_broadcast_rgb_name ====
[15:34:06] == drm_hdmi_connector_get_output_format_name (2 subtests) ==
[15:34:06] === drm_test_drm_hdmi_connector_get_output_format_name ====
[15:34:06] [PASSED] RGB
[15:34:06] [PASSED] YUV 4:2:0
[15:34:06] [PASSED] YUV 4:2:2
[15:34:06] [PASSED] YUV 4:4:4
[15:34:06] === [PASSED] drm_test_drm_hdmi_connector_get_output_format_name ===
[15:34:06] [PASSED] drm_test_drm_hdmi_connector_get_output_format_name_invalid
[15:34:06] ==== [PASSED] drm_hdmi_connector_get_output_format_name ====
[15:34:06] ============= drm_damage_helper (21 subtests) ==============
[15:34:06] [PASSED] drm_test_damage_iter_no_damage
[15:34:06] [PASSED] drm_test_damage_iter_no_damage_fractional_src
[15:34:06] [PASSED] drm_test_damage_iter_no_damage_src_moved
[15:34:06] [PASSED] drm_test_damage_iter_no_damage_fractional_src_moved
[15:34:06] [PASSED] drm_test_damage_iter_no_damage_not_visible
[15:34:06] [PASSED] drm_test_damage_iter_no_damage_no_crtc
[15:34:06] [PASSED] drm_test_damage_iter_no_damage_no_fb
[15:34:06] [PASSED] drm_test_damage_iter_simple_damage
[15:34:06] [PASSED] drm_test_damage_iter_single_damage
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_intersect_src
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_outside_src
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_fractional_src
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_intersect_fractional_src
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_outside_fractional_src
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_src_moved
[15:34:06] [PASSED] drm_test_damage_iter_single_damage_fractional_src_moved
[15:34:06] [PASSED] drm_test_damage_iter_damage
[15:34:06] [PASSED] drm_test_damage_iter_damage_one_intersect
[15:34:06] [PASSED] drm_test_damage_iter_damage_one_outside
[15:34:06] [PASSED] drm_test_damage_iter_damage_src_moved
[15:34:06] [PASSED] drm_test_damage_iter_damage_not_visible
[15:34:06] ================ [PASSED] drm_damage_helper ================
[15:34:06] ============== drm_dp_mst_helper (3 subtests) ==============
[15:34:06] ============== drm_test_dp_mst_calc_pbn_mode ==============
[15:34:06] [PASSED] Clock 154000 BPP 30 DSC disabled
[15:34:06] [PASSED] Clock 234000 BPP 30 DSC disabled
[15:34:06] [PASSED] Clock 297000 BPP 24 DSC disabled
[15:34:06] [PASSED] Clock 332880 BPP 24 DSC enabled
[15:34:06] [PASSED] Clock 324540 BPP 24 DSC enabled
[15:34:06] ========== [PASSED] drm_test_dp_mst_calc_pbn_mode ==========
[15:34:06] ============== drm_test_dp_mst_calc_pbn_div ===============
[15:34:06] [PASSED] Link rate 2000000 lane count 4
[15:34:06] [PASSED] Link rate 2000000 lane count 2
[15:34:06] [PASSED] Link rate 2000000 lane count 1
[15:34:06] [PASSED] Link rate 1350000 lane count 4
[15:34:06] [PASSED] Link rate 1350000 lane count 2
[15:34:06] [PASSED] Link rate 1350000 lane count 1
[15:34:06] [PASSED] Link rate 1000000 lane count 4
[15:34:06] [PASSED] Link rate 1000000 lane count 2
[15:34:06] [PASSED] Link rate 1000000 lane count 1
[15:34:06] [PASSED] Link rate 810000 lane count 4
[15:34:06] [PASSED] Link rate 810000 lane count 2
[15:34:06] [PASSED] Link rate 810000 lane count 1
[15:34:06] [PASSED] Link rate 540000 lane count 4
[15:34:06] [PASSED] Link rate 540000 lane count 2
[15:34:06] [PASSED] Link rate 540000 lane count 1
[15:34:06] [PASSED] Link rate 270000 lane count 4
[15:34:06] [PASSED] Link rate 270000 lane count 2
[15:34:06] [PASSED] Link rate 270000 lane count 1
[15:34:06] [PASSED] Link rate 162000 lane count 4
[15:34:06] [PASSED] Link rate 162000 lane count 2
[15:34:06] [PASSED] Link rate 162000 lane count 1
[15:34:06] ========== [PASSED] drm_test_dp_mst_calc_pbn_div ===========
[15:34:06] ========= drm_test_dp_mst_sideband_msg_req_decode =========
[15:34:06] [PASSED] DP_ENUM_PATH_RESOURCES with port number
[15:34:06] [PASSED] DP_POWER_UP_PHY with port number
[15:34:06] [PASSED] DP_POWER_DOWN_PHY with port number
[15:34:06] [PASSED] DP_ALLOCATE_PAYLOAD with SDP stream sinks
[15:34:06] [PASSED] DP_ALLOCATE_PAYLOAD with port number
[15:34:06] [PASSED] DP_ALLOCATE_PAYLOAD with VCPI
[15:34:06] [PASSED] DP_ALLOCATE_PAYLOAD with PBN
[15:34:06] [PASSED] DP_QUERY_PAYLOAD with port number
[15:34:06] [PASSED] DP_QUERY_PAYLOAD with VCPI
[15:34:06] [PASSED] DP_REMOTE_DPCD_READ with port number
[15:34:06] [PASSED] DP_REMOTE_DPCD_READ with DPCD address
[15:34:06] [PASSED] DP_REMOTE_DPCD_READ with max number of bytes
[15:34:06] [PASSED] DP_REMOTE_DPCD_WRITE with port number
[15:34:06] [PASSED] DP_REMOTE_DPCD_WRITE with DPCD address
[15:34:06] [PASSED] DP_REMOTE_DPCD_WRITE with data array
[15:34:06] [PASSED] DP_REMOTE_I2C_READ with port number
[15:34:06] [PASSED] DP_REMOTE_I2C_READ with I2C device ID
[15:34:06] [PASSED] DP_REMOTE_I2C_READ with transactions array
[15:34:06] [PASSED] DP_REMOTE_I2C_WRITE with port number
[15:34:06] [PASSED] DP_REMOTE_I2C_WRITE with I2C device ID
[15:34:06] [PASSED] DP_REMOTE_I2C_WRITE with data array
[15:34:06] [PASSED] DP_QUERY_STREAM_ENC_STATUS with stream ID
[15:34:06] [PASSED] DP_QUERY_STREAM_ENC_STATUS with client ID
[15:34:06] [PASSED] DP_QUERY_STREAM_ENC_STATUS with stream event
[15:34:06] [PASSED] DP_QUERY_STREAM_ENC_STATUS with valid stream event
[15:34:06] [PASSED] DP_QUERY_STREAM_ENC_STATUS with stream behavior
[15:34:06] [PASSED] DP_QUERY_STREAM_ENC_STATUS with a valid stream behavior
[15:34:06] ===== [PASSED] drm_test_dp_mst_sideband_msg_req_decode =====
[15:34:06] ================ [PASSED] drm_dp_mst_helper ================
[15:34:06] ================== drm_exec (7 subtests) ===================
[15:34:06] [PASSED] sanitycheck
[15:34:06] [PASSED] test_lock
[15:34:06] [PASSED] test_lock_unlock
[15:34:06] [PASSED] test_duplicates
[15:34:06] [PASSED] test_prepare
[15:34:06] [PASSED] test_prepare_array
[15:34:06] [PASSED] test_multiple_loops
[15:34:06] ==================== [PASSED] drm_exec =====================
[15:34:06] =========== drm_format_helper_test (17 subtests) ===========
[15:34:06] ============== drm_test_fb_xrgb8888_to_gray8 ==============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ========== [PASSED] drm_test_fb_xrgb8888_to_gray8 ==========
[15:34:06] ============= drm_test_fb_xrgb8888_to_rgb332 ==============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ========= [PASSED] drm_test_fb_xrgb8888_to_rgb332 ==========
[15:34:06] ============= drm_test_fb_xrgb8888_to_rgb565 ==============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ========= [PASSED] drm_test_fb_xrgb8888_to_rgb565 ==========
[15:34:06] ============ drm_test_fb_xrgb8888_to_xrgb1555 =============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======== [PASSED] drm_test_fb_xrgb8888_to_xrgb1555 =========
[15:34:06] ============ drm_test_fb_xrgb8888_to_argb1555 =============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======== [PASSED] drm_test_fb_xrgb8888_to_argb1555 =========
[15:34:06] ============ drm_test_fb_xrgb8888_to_rgba5551 =============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======== [PASSED] drm_test_fb_xrgb8888_to_rgba5551 =========
[15:34:06] ============= drm_test_fb_xrgb8888_to_rgb888 ==============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ========= [PASSED] drm_test_fb_xrgb8888_to_rgb888 ==========
[15:34:06] ============= drm_test_fb_xrgb8888_to_bgr888 ==============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ========= [PASSED] drm_test_fb_xrgb8888_to_bgr888 ==========
[15:34:06] ============ drm_test_fb_xrgb8888_to_argb8888 =============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======== [PASSED] drm_test_fb_xrgb8888_to_argb8888 =========
[15:34:06] =========== drm_test_fb_xrgb8888_to_xrgb2101010 ===========
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======= [PASSED] drm_test_fb_xrgb8888_to_xrgb2101010 =======
[15:34:06] =========== drm_test_fb_xrgb8888_to_argb2101010 ===========
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======= [PASSED] drm_test_fb_xrgb8888_to_argb2101010 =======
[15:34:06] ============== drm_test_fb_xrgb8888_to_mono ===============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ========== [PASSED] drm_test_fb_xrgb8888_to_mono ===========
[15:34:06] ==================== drm_test_fb_swab =====================
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ================ [PASSED] drm_test_fb_swab =================
[15:34:06] ============ drm_test_fb_xrgb8888_to_xbgr8888 =============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======== [PASSED] drm_test_fb_xrgb8888_to_xbgr8888 =========
[15:34:06] ============ drm_test_fb_xrgb8888_to_abgr8888 =============
[15:34:06] [PASSED] single_pixel_source_buffer
[15:34:06] [PASSED] single_pixel_clip_rectangle
[15:34:06] [PASSED] well_known_colors
[15:34:06] [PASSED] destination_pitch
[15:34:06] ======== [PASSED] drm_test_fb_xrgb8888_to_abgr8888 =========
[15:34:06] ================= drm_test_fb_clip_offset =================
[15:34:06] [PASSED] pass through
[15:34:06] [PASSED] horizontal offset
[15:34:06] [PASSED] vertical offset
[15:34:06] [PASSED] horizontal and vertical offset
[15:34:06] [PASSED] horizontal offset (custom pitch)
[15:34:06] [PASSED] vertical offset (custom pitch)
[15:34:06] [PASSED] horizontal and vertical offset (custom pitch)
[15:34:06] ============= [PASSED] drm_test_fb_clip_offset =============
[15:34:06] =================== drm_test_fb_memcpy ====================
[15:34:06] [PASSED] single_pixel_source_buffer: XR24 little-endian (0x34325258)
[15:34:06] [PASSED] single_pixel_source_buffer: XRA8 little-endian (0x38415258)
[15:34:06] [PASSED] single_pixel_source_buffer: YU24 little-endian (0x34325559)
[15:34:06] [PASSED] single_pixel_clip_rectangle: XB24 little-endian (0x34324258)
[15:34:06] [PASSED] single_pixel_clip_rectangle: XRA8 little-endian (0x38415258)
[15:34:06] [PASSED] single_pixel_clip_rectangle: YU24 little-endian (0x34325559)
[15:34:06] [PASSED] well_known_colors: XB24 little-endian (0x34324258)
[15:34:06] [PASSED] well_known_colors: XRA8 little-endian (0x38415258)
[15:34:06] [PASSED] well_known_colors: YU24 little-endian (0x34325559)
[15:34:06] [PASSED] destination_pitch: XB24 little-endian (0x34324258)
[15:34:06] [PASSED] destination_pitch: XRA8 little-endian (0x38415258)
[15:34:06] [PASSED] destination_pitch: YU24 little-endian (0x34325559)
[15:34:06] =============== [PASSED] drm_test_fb_memcpy ================
[15:34:06] ============= [PASSED] drm_format_helper_test ==============
[15:34:06] ================= drm_format (18 subtests) =================
[15:34:06] [PASSED] drm_test_format_block_width_invalid
[15:34:06] [PASSED] drm_test_format_block_width_one_plane
[15:34:06] [PASSED] drm_test_format_block_width_two_plane
[15:34:06] [PASSED] drm_test_format_block_width_three_plane
[15:34:06] [PASSED] drm_test_format_block_width_tiled
[15:34:06] [PASSED] drm_test_format_block_height_invalid
[15:34:06] [PASSED] drm_test_format_block_height_one_plane
[15:34:06] [PASSED] drm_test_format_block_height_two_plane
[15:34:06] [PASSED] drm_test_format_block_height_three_plane
[15:34:06] [PASSED] drm_test_format_block_height_tiled
[15:34:06] [PASSED] drm_test_format_min_pitch_invalid
[15:34:06] [PASSED] drm_test_format_min_pitch_one_plane_8bpp
[15:34:06] [PASSED] drm_test_format_min_pitch_one_plane_16bpp
[15:34:06] [PASSED] drm_test_format_min_pitch_one_plane_24bpp
[15:34:06] [PASSED] drm_test_format_min_pitch_one_plane_32bpp
[15:34:06] [PASSED] drm_test_format_min_pitch_two_plane
[15:34:06] [PASSED] drm_test_format_min_pitch_three_plane_8bpp
[15:34:06] [PASSED] drm_test_format_min_pitch_tiled
[15:34:06] =================== [PASSED] drm_format ====================
[15:34:06] ============== drm_framebuffer (10 subtests) ===============
[15:34:06] ========== drm_test_framebuffer_check_src_coords ==========
[15:34:06] [PASSED] Success: source fits into fb
[15:34:06] [PASSED] Fail: overflowing fb with x-axis coordinate
[15:34:06] [PASSED] Fail: overflowing fb with y-axis coordinate
[15:34:06] [PASSED] Fail: overflowing fb with source width
[15:34:06] [PASSED] Fail: overflowing fb with source height
[15:34:06] ====== [PASSED] drm_test_framebuffer_check_src_coords ======
[15:34:06] [PASSED] drm_test_framebuffer_cleanup
[15:34:06] =============== drm_test_framebuffer_create ===============
[15:34:06] [PASSED] ABGR8888 normal sizes
[15:34:06] [PASSED] ABGR8888 max sizes
[15:34:06] [PASSED] ABGR8888 pitch greater than min required
[15:34:06] [PASSED] ABGR8888 pitch less than min required
[15:34:06] [PASSED] ABGR8888 Invalid width
[15:34:06] [PASSED] ABGR8888 Invalid buffer handle
[15:34:06] [PASSED] No pixel format
[15:34:06] [PASSED] ABGR8888 Width 0
[15:34:06] [PASSED] ABGR8888 Height 0
[15:34:06] [PASSED] ABGR8888 Out of bound height * pitch combination
[15:34:06] [PASSED] ABGR8888 Large buffer offset
[15:34:06] [PASSED] ABGR8888 Buffer offset for inexistent plane
[15:34:06] [PASSED] ABGR8888 Invalid flag
[15:34:06] [PASSED] ABGR8888 Set DRM_MODE_FB_MODIFIERS without modifiers
[15:34:06] [PASSED] ABGR8888 Valid buffer modifier
[15:34:06] [PASSED] ABGR8888 Invalid buffer modifier(DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)
[15:34:06] [PASSED] ABGR8888 Extra pitches without DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] ABGR8888 Extra pitches with DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] NV12 Normal sizes
[15:34:06] [PASSED] NV12 Max sizes
[15:34:06] [PASSED] NV12 Invalid pitch
[15:34:06] [PASSED] NV12 Invalid modifier/missing DRM_MODE_FB_MODIFIERS flag
[15:34:06] [PASSED] NV12 different modifier per-plane
[15:34:06] [PASSED] NV12 with DRM_FORMAT_MOD_SAMSUNG_64_32_TILE
[15:34:06] [PASSED] NV12 Valid modifiers without DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] NV12 Modifier for inexistent plane
[15:34:06] [PASSED] NV12 Handle for inexistent plane
[15:34:06] [PASSED] NV12 Handle for inexistent plane without DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] YVU420 DRM_MODE_FB_MODIFIERS set without modifier
[15:34:06] [PASSED] YVU420 Normal sizes
[15:34:06] [PASSED] YVU420 Max sizes
[15:34:06] [PASSED] YVU420 Invalid pitch
[15:34:06] [PASSED] YVU420 Different pitches
[15:34:06] [PASSED] YVU420 Different buffer offsets/pitches
[15:34:06] [PASSED] YVU420 Modifier set just for plane 0, without DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] YVU420 Modifier set just for planes 0, 1, without DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] YVU420 Modifier set just for plane 0, 1, with DRM_MODE_FB_MODIFIERS
[15:34:06] [PASSED] YVU420 Valid modifier
[15:34:06] [PASSED] YVU420 Different modifiers per plane
[15:34:06] [PASSED] YVU420 Modifier for inexistent plane
[15:34:06] [PASSED] YUV420_10BIT Invalid modifier(DRM_FORMAT_MOD_LINEAR)
[15:34:06] [PASSED] X0L2 Normal sizes
[15:34:06] [PASSED] X0L2 Max sizes
[15:34:06] [PASSED] X0L2 Invalid pitch
[15:34:06] [PASSED] X0L2 Pitch greater than minimum required
[15:34:06] [PASSED] X0L2 Handle for inexistent plane
[15:34:06] [PASSED] X0L2 Offset for inexistent plane, without DRM_MODE_FB_MODIFIERS set
[15:34:06] [PASSED] X0L2 Modifier without DRM_MODE_FB_MODIFIERS set
[15:34:06] [PASSED] X0L2 Valid modifier
[15:34:06] [PASSED] X0L2 Modifier for inexistent plane
[15:34:06] =========== [PASSED] drm_test_framebuffer_create ===========
[15:34:06] [PASSED] drm_test_framebuffer_free
[15:34:06] [PASSED] drm_test_framebuffer_init
[15:34:06] [PASSED] drm_test_framebuffer_init_bad_format
[15:34:06] [PASSED] drm_test_framebuffer_init_dev_mismatch
[15:34:06] [PASSED] drm_test_framebuffer_lookup
[15:34:06] [PASSED] drm_test_framebuffer_lookup_inexistent
[15:34:06] [PASSED] drm_test_framebuffer_modifiers_not_supported
[15:34:06] ================= [PASSED] drm_framebuffer =================
[15:34:06] ================ drm_gem_shmem (8 subtests) ================
[15:34:06] [PASSED] drm_gem_shmem_test_obj_create
[15:34:06] [PASSED] drm_gem_shmem_test_obj_create_private
[15:34:06] [PASSED] drm_gem_shmem_test_pin_pages
[15:34:06] [PASSED] drm_gem_shmem_test_vmap
[15:34:06] [PASSED] drm_gem_shmem_test_get_sg_table
[15:34:06] [PASSED] drm_gem_shmem_test_get_pages_sgt
[15:34:06] [PASSED] drm_gem_shmem_test_madvise
[15:34:06] [PASSED] drm_gem_shmem_test_purge
[15:34:06] ================== [PASSED] drm_gem_shmem ==================
[15:34:06] === drm_atomic_helper_connector_hdmi_check (27 subtests) ===
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_auto_cea_mode
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_auto_cea_mode_vic_1
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_full_cea_mode
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_full_cea_mode_vic_1
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_limited_cea_mode
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_limited_cea_mode_vic_1
[15:34:06] ====== drm_test_check_broadcast_rgb_cea_mode_yuv420 =======
[15:34:06] [PASSED] Automatic
[15:34:06] [PASSED] Full
[15:34:06] [PASSED] Limited 16:235
[15:34:06] == [PASSED] drm_test_check_broadcast_rgb_cea_mode_yuv420 ===
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_crtc_mode_changed
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_crtc_mode_not_changed
[15:34:06] [PASSED] drm_test_check_disable_connector
[15:34:06] [PASSED] drm_test_check_hdmi_funcs_reject_rate
[15:34:06] [PASSED] drm_test_check_max_tmds_rate_bpc_fallback_rgb
[15:34:06] [PASSED] drm_test_check_max_tmds_rate_bpc_fallback_yuv420
[15:34:06] [PASSED] drm_test_check_max_tmds_rate_bpc_fallback_ignore_yuv422
[15:34:06] [PASSED] drm_test_check_max_tmds_rate_bpc_fallback_ignore_yuv420
[15:34:06] [PASSED] drm_test_check_driver_unsupported_fallback_yuv420
[15:34:06] [PASSED] drm_test_check_output_bpc_crtc_mode_changed
[15:34:06] [PASSED] drm_test_check_output_bpc_crtc_mode_not_changed
[15:34:06] [PASSED] drm_test_check_output_bpc_dvi
[15:34:06] [PASSED] drm_test_check_output_bpc_format_vic_1
[15:34:06] [PASSED] drm_test_check_output_bpc_format_display_8bpc_only
[15:34:06] [PASSED] drm_test_check_output_bpc_format_display_rgb_only
[15:34:06] [PASSED] drm_test_check_output_bpc_format_driver_8bpc_only
[15:34:06] [PASSED] drm_test_check_output_bpc_format_driver_rgb_only
[15:34:06] [PASSED] drm_test_check_tmds_char_rate_rgb_8bpc
[15:34:06] [PASSED] drm_test_check_tmds_char_rate_rgb_10bpc
[15:34:06] [PASSED] drm_test_check_tmds_char_rate_rgb_12bpc
[15:34:06] ===== [PASSED] drm_atomic_helper_connector_hdmi_check ======
[15:34:06] === drm_atomic_helper_connector_hdmi_reset (6 subtests) ====
[15:34:06] [PASSED] drm_test_check_broadcast_rgb_value
[15:34:06] [PASSED] drm_test_check_bpc_8_value
[15:34:06] [PASSED] drm_test_check_bpc_10_value
[15:34:06] [PASSED] drm_test_check_bpc_12_value
[15:34:06] [PASSED] drm_test_check_format_value
[15:34:06] [PASSED] drm_test_check_tmds_char_value
[15:34:06] ===== [PASSED] drm_atomic_helper_connector_hdmi_reset ======
[15:34:06] = drm_atomic_helper_connector_hdmi_mode_valid (4 subtests) =
[15:34:06] [PASSED] drm_test_check_mode_valid
[15:34:06] [PASSED] drm_test_check_mode_valid_reject
[15:34:06] [PASSED] drm_test_check_mode_valid_reject_rate
[15:34:06] [PASSED] drm_test_check_mode_valid_reject_max_clock
[15:34:06] === [PASSED] drm_atomic_helper_connector_hdmi_mode_valid ===
[15:34:06] = drm_atomic_helper_connector_hdmi_infoframes (5 subtests) =
[15:34:06] [PASSED] drm_test_check_infoframes
[15:34:06] [PASSED] drm_test_check_reject_avi_infoframe
[15:34:06] [PASSED] drm_test_check_reject_hdr_infoframe_bpc_8
[15:34:06] [PASSED] drm_test_check_reject_hdr_infoframe_bpc_10
[15:34:06] [PASSED] drm_test_check_reject_audio_infoframe
[15:34:06] === [PASSED] drm_atomic_helper_connector_hdmi_infoframes ===
[15:34:06] ================= drm_managed (2 subtests) =================
[15:34:06] [PASSED] drm_test_managed_release_action
[15:34:06] [PASSED] drm_test_managed_run_action
[15:34:06] =================== [PASSED] drm_managed ===================
[15:34:06] =================== drm_mm (6 subtests) ====================
[15:34:06] [PASSED] drm_test_mm_init
[15:34:06] [PASSED] drm_test_mm_debug
[15:34:06] [PASSED] drm_test_mm_align32
[15:34:06] [PASSED] drm_test_mm_align64
[15:34:06] [PASSED] drm_test_mm_lowest
[15:34:06] [PASSED] drm_test_mm_highest
[15:34:06] ===================== [PASSED] drm_mm ======================
[15:34:06] ============= drm_modes_analog_tv (5 subtests) =============
[15:34:06] [PASSED] drm_test_modes_analog_tv_mono_576i
[15:34:06] [PASSED] drm_test_modes_analog_tv_ntsc_480i
[15:34:06] [PASSED] drm_test_modes_analog_tv_ntsc_480i_inlined
[15:34:06] [PASSED] drm_test_modes_analog_tv_pal_576i
[15:34:06] [PASSED] drm_test_modes_analog_tv_pal_576i_inlined
[15:34:06] =============== [PASSED] drm_modes_analog_tv ===============
[15:34:06] ============== drm_plane_helper (2 subtests) ===============
[15:34:06] =============== drm_test_check_plane_state ================
[15:34:06] [PASSED] clipping_simple
[15:34:06] [PASSED] clipping_rotate_reflect
[15:34:06] [PASSED] positioning_simple
[15:34:06] [PASSED] upscaling
[15:34:06] [PASSED] downscaling
[15:34:06] [PASSED] rounding1
[15:34:06] [PASSED] rounding2
[15:34:06] [PASSED] rounding3
[15:34:06] [PASSED] rounding4
[15:34:06] =========== [PASSED] drm_test_check_plane_state ============
[15:34:06] =========== drm_test_check_invalid_plane_state ============
[15:34:06] [PASSED] positioning_invalid
[15:34:06] [PASSED] upscaling_invalid
[15:34:06] [PASSED] downscaling_invalid
[15:34:06] ======= [PASSED] drm_test_check_invalid_plane_state ========
[15:34:06] ================ [PASSED] drm_plane_helper =================
[15:34:06] ====== drm_connector_helper_tv_get_modes (1 subtest) =======
[15:34:06] ====== drm_test_connector_helper_tv_get_modes_check =======
[15:34:06] [PASSED] None
[15:34:06] [PASSED] PAL
[15:34:06] [PASSED] NTSC
[15:34:06] [PASSED] Both, NTSC Default
[15:34:06] [PASSED] Both, PAL Default
[15:34:06] [PASSED] Both, NTSC Default, with PAL on command-line
[15:34:06] [PASSED] Both, PAL Default, with NTSC on command-line
[15:34:06] == [PASSED] drm_test_connector_helper_tv_get_modes_check ===
[15:34:06] ======== [PASSED] drm_connector_helper_tv_get_modes ========
[15:34:06] ================== drm_rect (9 subtests) ===================
[15:34:06] [PASSED] drm_test_rect_clip_scaled_div_by_zero
[15:34:06] [PASSED] drm_test_rect_clip_scaled_not_clipped
[15:34:06] [PASSED] drm_test_rect_clip_scaled_clipped
[15:34:06] [PASSED] drm_test_rect_clip_scaled_signed_vs_unsigned
[15:34:06] ================= drm_test_rect_intersect =================
[15:34:06] [PASSED] top-left x bottom-right: 2x2+1+1 x 2x2+0+0
[15:34:06] [PASSED] top-right x bottom-left: 2x2+0+0 x 2x2+1-1
[15:34:06] [PASSED] bottom-left x top-right: 2x2+1-1 x 2x2+0+0
[15:34:06] [PASSED] bottom-right x top-left: 2x2+0+0 x 2x2+1+1
[15:34:06] [PASSED] right x left: 2x1+0+0 x 3x1+1+0
[15:34:06] [PASSED] left x right: 3x1+1+0 x 2x1+0+0
[15:34:06] [PASSED] up x bottom: 1x2+0+0 x 1x3+0-1
[15:34:06] [PASSED] bottom x up: 1x3+0-1 x 1x2+0+0
[15:34:06] [PASSED] touching corner: 1x1+0+0 x 2x2+1+1
[15:34:06] [PASSED] touching side: 1x1+0+0 x 1x1+1+0
[15:34:06] [PASSED] equal rects: 2x2+0+0 x 2x2+0+0
[15:34:06] [PASSED] inside another: 2x2+0+0 x 1x1+1+1
[15:34:06] [PASSED] far away: 1x1+0+0 x 1x1+3+6
[15:34:06] [PASSED] points intersecting: 0x0+5+10 x 0x0+5+10
[15:34:06] [PASSED] points not intersecting: 0x0+0+0 x 0x0+5+10
stty: 'standard input': Inappropriate ioctl for device
[15:34:06] ============= [PASSED] drm_test_rect_intersect =============
[15:34:06] ================ drm_test_rect_calc_hscale ================
[15:34:06] [PASSED] normal use
[15:34:06] [PASSED] out of max range
[15:34:06] [PASSED] out of min range
[15:34:06] [PASSED] zero dst
[15:34:06] [PASSED] negative src
[15:34:06] [PASSED] negative dst
[15:34:06] ============ [PASSED] drm_test_rect_calc_hscale ============
[15:34:06] ================ drm_test_rect_calc_vscale ================
[15:34:06] [PASSED] normal use
[15:34:06] [PASSED] out of max range
[15:34:06] [PASSED] out of min range
[15:34:06] [PASSED] zero dst
[15:34:06] [PASSED] negative src
[15:34:06] [PASSED] negative dst
[15:34:06] ============ [PASSED] drm_test_rect_calc_vscale ============
[15:34:06] ================== drm_test_rect_rotate ===================
[15:34:06] [PASSED] reflect-x
[15:34:06] [PASSED] reflect-y
[15:34:06] [PASSED] rotate-0
[15:34:06] [PASSED] rotate-90
[15:34:06] [PASSED] rotate-180
[15:34:06] [PASSED] rotate-270
[15:34:06] ============== [PASSED] drm_test_rect_rotate ===============
[15:34:06] ================ drm_test_rect_rotate_inv =================
[15:34:06] [PASSED] reflect-x
[15:34:06] [PASSED] reflect-y
[15:34:06] [PASSED] rotate-0
[15:34:06] [PASSED] rotate-90
[15:34:06] [PASSED] rotate-180
[15:34:06] [PASSED] rotate-270
[15:34:06] ============ [PASSED] drm_test_rect_rotate_inv =============
[15:34:06] ==================== [PASSED] drm_rect =====================
[15:34:06] ============ drm_sysfb_modeset_test (1 subtest) ============
[15:34:06] ============ drm_test_sysfb_build_fourcc_list =============
[15:34:06] [PASSED] no native formats
[15:34:06] [PASSED] XRGB8888 as native format
[15:34:06] [PASSED] remove duplicates
[15:34:06] [PASSED] convert alpha formats
[15:34:06] [PASSED] random formats
[15:34:06] ======== [PASSED] drm_test_sysfb_build_fourcc_list =========
[15:34:06] ============= [PASSED] drm_sysfb_modeset_test ==============
[15:34:06] ================== drm_fixp (2 subtests) ===================
[15:34:06] [PASSED] drm_test_int2fixp
[15:34:06] [PASSED] drm_test_sm2fixp
[15:34:06] ==================== [PASSED] drm_fixp =====================
[15:34:06] ============================================================
[15:34:06] Testing complete. Ran 630 tests: passed: 630
[15:34:06] Elapsed time: 27.813s total, 1.639s configuring, 25.758s building, 0.367s running
+ /kernel/tools/testing/kunit/kunit.py run --kunitconfig /kernel/drivers/gpu/drm/ttm/tests/.kunitconfig
[15:34:06] Configuring KUnit Kernel ...
Regenerating .config ...
Populating config with:
$ make ARCH=um O=.kunit olddefconfig
[15:34:08] Building KUnit Kernel ...
Populating config with:
$ make ARCH=um O=.kunit olddefconfig
Building with:
$ make all compile_commands.json scripts_gdb ARCH=um O=.kunit --jobs=48
[15:34:18] Starting KUnit Kernel (1/1)...
[15:34:18] ============================================================
Running tests with:
$ .kunit/linux kunit.enable=1 mem=1G console=tty kunit_shutdown=halt
[15:34:18] ================= ttm_device (5 subtests) ==================
[15:34:18] [PASSED] ttm_device_init_basic
[15:34:18] [PASSED] ttm_device_init_multiple
[15:34:18] [PASSED] ttm_device_fini_basic
[15:34:18] [PASSED] ttm_device_init_no_vma_man
[15:34:18] ================== ttm_device_init_pools ==================
[15:34:18] [PASSED] No DMA allocations, no DMA32 required
[15:34:18] [PASSED] DMA allocations, DMA32 required
[15:34:18] [PASSED] No DMA allocations, DMA32 required
[15:34:18] [PASSED] DMA allocations, no DMA32 required
[15:34:18] ============== [PASSED] ttm_device_init_pools ==============
[15:34:18] =================== [PASSED] ttm_device ====================
[15:34:18] ================== ttm_pool (8 subtests) ===================
[15:34:18] ================== ttm_pool_alloc_basic ===================
[15:34:18] [PASSED] One page
[15:34:18] [PASSED] More than one page
[15:34:18] [PASSED] Above the allocation limit
[15:34:18] [PASSED] One page, with coherent DMA mappings enabled
[15:34:18] [PASSED] Above the allocation limit, with coherent DMA mappings enabled
[15:34:18] ============== [PASSED] ttm_pool_alloc_basic ===============
[15:34:18] ============== ttm_pool_alloc_basic_dma_addr ==============
[15:34:18] [PASSED] One page
[15:34:18] [PASSED] More than one page
[15:34:18] [PASSED] Above the allocation limit
[15:34:18] [PASSED] One page, with coherent DMA mappings enabled
[15:34:18] [PASSED] Above the allocation limit, with coherent DMA mappings enabled
[15:34:18] ========== [PASSED] ttm_pool_alloc_basic_dma_addr ==========
[15:34:18] [PASSED] ttm_pool_alloc_order_caching_match
[15:34:18] [PASSED] ttm_pool_alloc_caching_mismatch
[15:34:18] [PASSED] ttm_pool_alloc_order_mismatch
[15:34:18] [PASSED] ttm_pool_free_dma_alloc
[15:34:18] [PASSED] ttm_pool_free_no_dma_alloc
[15:34:18] [PASSED] ttm_pool_fini_basic
[15:34:18] ==================== [PASSED] ttm_pool =====================
[15:34:18] ================ ttm_resource (8 subtests) =================
[15:34:18] ================= ttm_resource_init_basic =================
[15:34:18] [PASSED] Init resource in TTM_PL_SYSTEM
[15:34:18] [PASSED] Init resource in TTM_PL_VRAM
[15:34:18] [PASSED] Init resource in a private placement
[15:34:18] [PASSED] Init resource in TTM_PL_SYSTEM, set placement flags
[15:34:18] ============= [PASSED] ttm_resource_init_basic =============
[15:34:18] [PASSED] ttm_resource_init_pinned
[15:34:18] [PASSED] ttm_resource_fini_basic
[15:34:18] [PASSED] ttm_resource_manager_init_basic
[15:34:18] [PASSED] ttm_resource_manager_usage_basic
[15:34:18] [PASSED] ttm_resource_manager_set_used_basic
[15:34:18] [PASSED] ttm_sys_man_alloc_basic
[15:34:18] [PASSED] ttm_sys_man_free_basic
[15:34:18] ================== [PASSED] ttm_resource ===================
[15:34:18] =================== ttm_tt (15 subtests) ===================
[15:34:18] ==================== ttm_tt_init_basic ====================
[15:34:18] [PASSED] Page-aligned size
[15:34:18] [PASSED] Extra pages requested
[15:34:18] ================ [PASSED] ttm_tt_init_basic ================
[15:34:18] [PASSED] ttm_tt_init_misaligned
[15:34:18] [PASSED] ttm_tt_fini_basic
[15:34:18] [PASSED] ttm_tt_fini_sg
[15:34:18] [PASSED] ttm_tt_fini_shmem
[15:34:18] [PASSED] ttm_tt_create_basic
[15:34:18] [PASSED] ttm_tt_create_invalid_bo_type
[15:34:18] [PASSED] ttm_tt_create_ttm_exists
[15:34:18] [PASSED] ttm_tt_create_failed
[15:34:18] [PASSED] ttm_tt_destroy_basic
[15:34:18] [PASSED] ttm_tt_populate_null_ttm
[15:34:18] [PASSED] ttm_tt_populate_populated_ttm
[15:34:18] [PASSED] ttm_tt_unpopulate_basic
[15:34:18] [PASSED] ttm_tt_unpopulate_empty_ttm
[15:34:18] [PASSED] ttm_tt_swapin_basic
[15:34:18] ===================== [PASSED] ttm_tt ======================
[15:34:18] =================== ttm_bo (14 subtests) ===================
[15:34:18] =========== ttm_bo_reserve_optimistic_no_ticket ===========
[15:34:18] [PASSED] Cannot be interrupted and sleeps
[15:34:18] [PASSED] Cannot be interrupted, locks straight away
[15:34:18] [PASSED] Can be interrupted, sleeps
[15:34:18] ======= [PASSED] ttm_bo_reserve_optimistic_no_ticket =======
[15:34:18] [PASSED] ttm_bo_reserve_locked_no_sleep
[15:34:18] [PASSED] ttm_bo_reserve_no_wait_ticket
[15:34:18] [PASSED] ttm_bo_reserve_double_resv
[15:34:18] [PASSED] ttm_bo_reserve_interrupted
[15:34:18] [PASSED] ttm_bo_reserve_deadlock
[15:34:18] [PASSED] ttm_bo_unreserve_basic
[15:34:18] [PASSED] ttm_bo_unreserve_pinned
[15:34:18] [PASSED] ttm_bo_unreserve_bulk
[15:34:18] [PASSED] ttm_bo_fini_basic
[15:34:18] [PASSED] ttm_bo_fini_shared_resv
[15:34:18] [PASSED] ttm_bo_pin_basic
[15:34:18] [PASSED] ttm_bo_pin_unpin_resource
[15:34:18] [PASSED] ttm_bo_multiple_pin_one_unpin
[15:34:18] ===================== [PASSED] ttm_bo ======================
[15:34:18] ============== ttm_bo_validate (21 subtests) ===============
[15:34:18] ============== ttm_bo_init_reserved_sys_man ===============
[15:34:18] [PASSED] Buffer object for userspace
[15:34:18] [PASSED] Kernel buffer object
[15:34:18] [PASSED] Shared buffer object
[15:34:18] ========== [PASSED] ttm_bo_init_reserved_sys_man ===========
[15:34:18] ============== ttm_bo_init_reserved_mock_man ==============
[15:34:18] [PASSED] Buffer object for userspace
[15:34:18] [PASSED] Kernel buffer object
[15:34:18] [PASSED] Shared buffer object
[15:34:18] ========== [PASSED] ttm_bo_init_reserved_mock_man ==========
[15:34:18] [PASSED] ttm_bo_init_reserved_resv
[15:34:18] ================== ttm_bo_validate_basic ==================
[15:34:18] [PASSED] Buffer object for userspace
[15:34:18] [PASSED] Kernel buffer object
[15:34:18] [PASSED] Shared buffer object
[15:34:18] ============== [PASSED] ttm_bo_validate_basic ==============
[15:34:18] [PASSED] ttm_bo_validate_invalid_placement
[15:34:18] ============= ttm_bo_validate_same_placement ==============
[15:34:18] [PASSED] System manager
[15:34:18] [PASSED] VRAM manager
[15:34:18] ========= [PASSED] ttm_bo_validate_same_placement ==========
[15:34:18] [PASSED] ttm_bo_validate_failed_alloc
[15:34:18] [PASSED] ttm_bo_validate_pinned
[15:34:18] [PASSED] ttm_bo_validate_busy_placement
[15:34:18] ================ ttm_bo_validate_multihop =================
[15:34:18] [PASSED] Buffer object for userspace
[15:34:18] [PASSED] Kernel buffer object
[15:34:18] [PASSED] Shared buffer object
[15:34:18] ============ [PASSED] ttm_bo_validate_multihop =============
[15:34:18] ========== ttm_bo_validate_no_placement_signaled ==========
[15:34:18] [PASSED] Buffer object in system domain, no page vector
[15:34:18] [PASSED] Buffer object in system domain with an existing page vector
[15:34:18] ====== [PASSED] ttm_bo_validate_no_placement_signaled ======
[15:34:18] ======== ttm_bo_validate_no_placement_not_signaled ========
[15:34:18] [PASSED] Buffer object for userspace
[15:34:18] [PASSED] Kernel buffer object
[15:34:18] [PASSED] Shared buffer object
[15:34:18] ==== [PASSED] ttm_bo_validate_no_placement_not_signaled ====
[15:34:18] [PASSED] ttm_bo_validate_move_fence_signaled
[15:34:18] ========= ttm_bo_validate_move_fence_not_signaled =========
[15:34:18] [PASSED] Waits for GPU
[15:34:18] [PASSED] Tries to lock straight away
[15:34:18] ===== [PASSED] ttm_bo_validate_move_fence_not_signaled =====
[15:34:18] [PASSED] ttm_bo_validate_happy_evict
[15:34:18] [PASSED] ttm_bo_validate_all_pinned_evict
[15:34:18] [PASSED] ttm_bo_validate_allowed_only_evict
[15:34:18] [PASSED] ttm_bo_validate_deleted_evict
[15:34:18] [PASSED] ttm_bo_validate_busy_domain_evict
[15:34:18] [PASSED] ttm_bo_validate_evict_gutting
[15:34:18] [PASSED] ttm_bo_validate_recrusive_evict
stty: 'standard input': Inappropriate ioctl for device
[15:34:18] ================= [PASSED] ttm_bo_validate =================
[15:34:18] ============================================================
[15:34:18] Testing complete. Ran 101 tests: passed: 101
[15:34:18] Elapsed time: 11.665s total, 1.708s configuring, 9.741s building, 0.178s running
+ cleanup
++ stat -c %u:%g /kernel
+ chown -R 1003:1003 /kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* ✗ Xe.CI.BAT: failure for mm: Fix a hmm_range_fault() livelock / starvation problem (rev2)
2026-02-03 14:34 [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem Thomas Hellström
2026-02-03 15:34 ` ✓ CI.KUnit: success for mm: Fix a hmm_range_fault() livelock / starvation problem (rev2) Patchwork
@ 2026-02-03 16:08 ` Patchwork
2026-02-04 1:52 ` [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem John Hubbard
2026-02-04 10:59 ` Alistair Popple
3 siblings, 0 replies; 6+ messages in thread
From: Patchwork @ 2026-02-03 16:08 UTC (permalink / raw)
To: Thomas Hellström; +Cc: intel-xe
[-- Attachment #1: Type: text/plain, Size: 394 bytes --]
== Series Details ==
Series: mm: Fix a hmm_range_fault() livelock / starvation problem (rev2)
URL : https://patchwork.freedesktop.org/series/161081/
State : failure
== Summary ==
ERROR: The runconfig 'xe-4490-9f5242e63f0bab74d47ae6792e0c25a324184a6b_BAT' does not exist in the database
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/intel-xe/xe-pw-161081v2/index.html
[-- Attachment #2: Type: text/html, Size: 959 bytes --]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem
2026-02-03 14:34 [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem Thomas Hellström
2026-02-03 15:34 ` ✓ CI.KUnit: success for mm: Fix a hmm_range_fault() livelock / starvation problem (rev2) Patchwork
2026-02-03 16:08 ` ✗ Xe.CI.BAT: failure " Patchwork
@ 2026-02-04 1:52 ` John Hubbard
2026-02-04 10:59 ` Alistair Popple
3 siblings, 0 replies; 6+ messages in thread
From: John Hubbard @ 2026-02-04 1:52 UTC (permalink / raw)
To: Thomas Hellström, intel-xe
Cc: Alistair Popple, Ralph Campbell, Christoph Hellwig,
Jason Gunthorpe, Jason Gunthorpe, Leon Romanovsky, Andrew Morton,
Matthew Brost, linux-mm, dri-devel, stable
On 2/3/26 6:34 AM, Thomas Hellström wrote:
> If hmm_range_fault() fails a folio_trylock() in do_swap_page,
> trying to acquire the lock of a device-private folio for migration,
> to ram, the function will spin until it succeeds grabbing the lock.
>
> However, if the process holding the lock is depending on a work
> item to be completed, which is scheduled on the same CPU as the
> spinning hmm_range_fault(), that work item might be starved and
> we end up in a livelock / starvation situation which is never
> resolved.
>
> This can happen, for example if the process holding the
> device-private folio lock is stuck in
> migrate_device_unmap()->lru_add_drain_all()
> The lru_add_drain_all() function requires a short work-item
> to be run on all online cpus to complete.
>
> A prerequisite for this to happen is:
> a) Both zone device and system memory folios are considered in
> migrate_device_unmap(), so that there is a reason to call
> lru_add_drain_all() for a system memory folio while a
> folio lock is held on a zone device folio.
> b) The zone device folio has an initial mapcount > 1 which causes
> at least one migration PTE entry insertion to be deferred to
> try_to_migrate(), which can happen after the call to
> lru_add_drain_all().
> c) No or voluntary only preemption.
>
> This all seems pretty unlikely to happen, but indeed is hit by
> the "xe_exec_system_allocator" igt test.
>
> Resolve this by waiting for the folio to be unlocked if the
> folio_trylock() fails in the do_swap_page() function.
>
> Future code improvements might consider moving
> the lru_add_drain_all() call in migrate_device_unmap() to be
> called *after* all pages have migration entries inserted.
> That would eliminate also b) above.
>
> v2:
> - Instead of a cond_resched() in the hmm_range_fault() function,
> eliminate the problem by waiting for the folio to be unlocked
> in do_swap_page() (Alistair Popple, Andrew Morton)
> v3:
> - Add a stub migration_entry_wait_on_locked() for the
> !CONFIG_MIGRATION case. (Kernel Test Robot)
>
> Suggested-by: Alistair Popple <apopple@nvidia.com>
> Fixes: 1afaeb8293c9 ("mm/migrate: Trylock device page in do_swap_page")
> Cc: Ralph Campbell <rcampbell@nvidia.com>
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: Jason Gunthorpe <jgg@mellanox.com>
> Cc: Jason Gunthorpe <jgg@ziepe.ca>
> Cc: Leon Romanovsky <leon@kernel.org>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Matthew Brost <matthew.brost@intel.com>
> Cc: John Hubbard <jhubbard@nvidia.com>
> Cc: Alistair Popple <apopple@nvidia.com>
> Cc: linux-mm@kvack.org
> Cc: <dri-devel@lists.freedesktop.org>
> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
> Cc: <stable@vger.kernel.org> # v6.15+
> ---
> include/linux/migrate.h | 6 ++++++
> mm/memory.c | 3 ++-
> 2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/migrate.h b/include/linux/migrate.h
> index 26ca00c325d9..800ec174b601 100644
> --- a/include/linux/migrate.h
> +++ b/include/linux/migrate.h
> @@ -97,6 +97,12 @@ static inline int set_movable_ops(const struct movable_operations *ops, enum pag
> return -ENOSYS;
> }
>
> +static inline void migration_entry_wait_on_locked(softleaf_t entry, spinlock_t *ptl)
> + __releases(ptl)
> +{
> + spin_unlock(ptl);
> +}
> +
> #endif /* CONFIG_MIGRATION */
>
> #ifdef CONFIG_NUMA_BALANCING
> diff --git a/mm/memory.c b/mm/memory.c
> index da360a6eb8a4..ed20da5570d5 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -4684,7 +4684,8 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
> unlock_page(vmf->page);
> put_page(vmf->page);
> } else {
> - pte_unmap_unlock(vmf->pte, vmf->ptl);
> + pte_unmap(vmf->pte);
> + migration_entry_wait_on_locked(entry, vmf->ptl);
This is neatly done.
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
thanks,
--
John Hubbard
> }
> } else if (softleaf_is_hwpoison(entry)) {
> ret = VM_FAULT_HWPOISON;
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem
2026-02-03 14:34 [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem Thomas Hellström
` (2 preceding siblings ...)
2026-02-04 1:52 ` [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem John Hubbard
@ 2026-02-04 10:59 ` Alistair Popple
2026-02-04 11:47 ` Thomas Hellström
3 siblings, 1 reply; 6+ messages in thread
From: Alistair Popple @ 2026-02-04 10:59 UTC (permalink / raw)
To: Thomas Hellström
Cc: intel-xe, Ralph Campbell, Christoph Hellwig, Jason Gunthorpe,
Jason Gunthorpe, Leon Romanovsky, Andrew Morton, Matthew Brost,
John Hubbard, linux-mm, dri-devel, stable
On 2026-02-04 at 01:34 +1100, Thomas Hellström <thomas.hellstrom@linux.intel.com> wrote...
> If hmm_range_fault() fails a folio_trylock() in do_swap_page,
> trying to acquire the lock of a device-private folio for migration,
> to ram, the function will spin until it succeeds grabbing the lock.
>
> However, if the process holding the lock is depending on a work
> item to be completed, which is scheduled on the same CPU as the
> spinning hmm_range_fault(), that work item might be starved and
> we end up in a livelock / starvation situation which is never
> resolved.
>
> This can happen, for example if the process holding the
> device-private folio lock is stuck in
> migrate_device_unmap()->lru_add_drain_all()
> The lru_add_drain_all() function requires a short work-item
> to be run on all online cpus to complete.
>
> A prerequisite for this to happen is:
> a) Both zone device and system memory folios are considered in
> migrate_device_unmap(), so that there is a reason to call
> lru_add_drain_all() for a system memory folio while a
> folio lock is held on a zone device folio.
> b) The zone device folio has an initial mapcount > 1 which causes
> at least one migration PTE entry insertion to be deferred to
> try_to_migrate(), which can happen after the call to
> lru_add_drain_all().
> c) No or voluntary only preemption.
>
> This all seems pretty unlikely to happen, but indeed is hit by
> the "xe_exec_system_allocator" igt test.
>
> Resolve this by waiting for the folio to be unlocked if the
> folio_trylock() fails in the do_swap_page() function.
>
> Future code improvements might consider moving
> the lru_add_drain_all() call in migrate_device_unmap() to be
> called *after* all pages have migration entries inserted.
> That would eliminate also b) above.
>
> v2:
> - Instead of a cond_resched() in the hmm_range_fault() function,
> eliminate the problem by waiting for the folio to be unlocked
> in do_swap_page() (Alistair Popple, Andrew Morton)
> v3:
> - Add a stub migration_entry_wait_on_locked() for the
> !CONFIG_MIGRATION case. (Kernel Test Robot)
>
> Suggested-by: Alistair Popple <apopple@nvidia.com>
> Fixes: 1afaeb8293c9 ("mm/migrate: Trylock device page in do_swap_page")
> Cc: Ralph Campbell <rcampbell@nvidia.com>
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: Jason Gunthorpe <jgg@mellanox.com>
> Cc: Jason Gunthorpe <jgg@ziepe.ca>
> Cc: Leon Romanovsky <leon@kernel.org>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Matthew Brost <matthew.brost@intel.com>
> Cc: John Hubbard <jhubbard@nvidia.com>
> Cc: Alistair Popple <apopple@nvidia.com>
> Cc: linux-mm@kvack.org
> Cc: <dri-devel@lists.freedesktop.org>
> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
> Cc: <stable@vger.kernel.org> # v6.15+
> ---
> include/linux/migrate.h | 6 ++++++
> mm/memory.c | 3 ++-
> 2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/migrate.h b/include/linux/migrate.h
> index 26ca00c325d9..800ec174b601 100644
> --- a/include/linux/migrate.h
> +++ b/include/linux/migrate.h
> @@ -97,6 +97,12 @@ static inline int set_movable_ops(const struct movable_operations *ops, enum pag
> return -ENOSYS;
> }
>
> +static inline void migration_entry_wait_on_locked(softleaf_t entry, spinlock_t *ptl)
> + __releases(ptl)
> +{
> + spin_unlock(ptl);
> +}
> +
> #endif /* CONFIG_MIGRATION */
>
> #ifdef CONFIG_NUMA_BALANCING
> diff --git a/mm/memory.c b/mm/memory.c
> index da360a6eb8a4..ed20da5570d5 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -4684,7 +4684,8 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
> unlock_page(vmf->page);
> put_page(vmf->page);
> } else {
> - pte_unmap_unlock(vmf->pte, vmf->ptl);
> + pte_unmap(vmf->pte);
> + migration_entry_wait_on_locked(entry, vmf->ptl);
Code wise this looks fine to me, although it's confusing to see
migration_entry_wait_on_locked() being called on a non-migration entry and
ideally this would be renamed to something like softleaf_entry_wait_on_locked().
Regardless though the documentation for migration_entry_wait_on_locked() needs
updating to justify why calling this on device-private entries is valid (because
it's also just waiting for the page to be unlocked). Along with some equivalent
justification for how we know there is a reference on the device-private page:
* If a migration entry exists for the page the migration path must hold
* a valid reference to the page, and it must take the ptl to remove the
* migration entry. So the page is valid until the ptl is dropped.
Which is basically just the page is mapped in the page table, therefore it must
have a reference taken for the mapping and the mapping can't be removed while we
hold the PTL.
Thanks.
- Alistair
> }
> } else if (softleaf_is_hwpoison(entry)) {
> ret = VM_FAULT_HWPOISON;
> --
> 2.52.0
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem
2026-02-04 10:59 ` Alistair Popple
@ 2026-02-04 11:47 ` Thomas Hellström
0 siblings, 0 replies; 6+ messages in thread
From: Thomas Hellström @ 2026-02-04 11:47 UTC (permalink / raw)
To: Alistair Popple
Cc: intel-xe, Ralph Campbell, Christoph Hellwig, Jason Gunthorpe,
Jason Gunthorpe, Leon Romanovsky, Andrew Morton, Matthew Brost,
John Hubbard, linux-mm, dri-devel, stable
On Wed, 2026-02-04 at 21:59 +1100, Alistair Popple wrote:
> On 2026-02-04 at 01:34 +1100, Thomas Hellström
> <thomas.hellstrom@linux.intel.com> wrote...
> > If hmm_range_fault() fails a folio_trylock() in do_swap_page,
> > trying to acquire the lock of a device-private folio for migration,
> > to ram, the function will spin until it succeeds grabbing the lock.
> >
> > However, if the process holding the lock is depending on a work
> > item to be completed, which is scheduled on the same CPU as the
> > spinning hmm_range_fault(), that work item might be starved and
> > we end up in a livelock / starvation situation which is never
> > resolved.
> >
> > This can happen, for example if the process holding the
> > device-private folio lock is stuck in
> > migrate_device_unmap()->lru_add_drain_all()
> > The lru_add_drain_all() function requires a short work-item
> > to be run on all online cpus to complete.
> >
> > A prerequisite for this to happen is:
> > a) Both zone device and system memory folios are considered in
> > migrate_device_unmap(), so that there is a reason to call
> > lru_add_drain_all() for a system memory folio while a
> > folio lock is held on a zone device folio.
> > b) The zone device folio has an initial mapcount > 1 which causes
> > at least one migration PTE entry insertion to be deferred to
> > try_to_migrate(), which can happen after the call to
> > lru_add_drain_all().
> > c) No or voluntary only preemption.
> >
> > This all seems pretty unlikely to happen, but indeed is hit by
> > the "xe_exec_system_allocator" igt test.
> >
> > Resolve this by waiting for the folio to be unlocked if the
> > folio_trylock() fails in the do_swap_page() function.
> >
> > Future code improvements might consider moving
> > the lru_add_drain_all() call in migrate_device_unmap() to be
> > called *after* all pages have migration entries inserted.
> > That would eliminate also b) above.
> >
> > v2:
> > - Instead of a cond_resched() in the hmm_range_fault() function,
> > eliminate the problem by waiting for the folio to be unlocked
> > in do_swap_page() (Alistair Popple, Andrew Morton)
> > v3:
> > - Add a stub migration_entry_wait_on_locked() for the
> > !CONFIG_MIGRATION case. (Kernel Test Robot)
> >
> > Suggested-by: Alistair Popple <apopple@nvidia.com>
> > Fixes: 1afaeb8293c9 ("mm/migrate: Trylock device page in
> > do_swap_page")
> > Cc: Ralph Campbell <rcampbell@nvidia.com>
> > Cc: Christoph Hellwig <hch@lst.de>
> > Cc: Jason Gunthorpe <jgg@mellanox.com>
> > Cc: Jason Gunthorpe <jgg@ziepe.ca>
> > Cc: Leon Romanovsky <leon@kernel.org>
> > Cc: Andrew Morton <akpm@linux-foundation.org>
> > Cc: Matthew Brost <matthew.brost@intel.com>
> > Cc: John Hubbard <jhubbard@nvidia.com>
> > Cc: Alistair Popple <apopple@nvidia.com>
> > Cc: linux-mm@kvack.org
> > Cc: <dri-devel@lists.freedesktop.org>
> > Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
> > Cc: <stable@vger.kernel.org> # v6.15+
> > ---
> > include/linux/migrate.h | 6 ++++++
> > mm/memory.c | 3 ++-
> > 2 files changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/include/linux/migrate.h b/include/linux/migrate.h
> > index 26ca00c325d9..800ec174b601 100644
> > --- a/include/linux/migrate.h
> > +++ b/include/linux/migrate.h
> > @@ -97,6 +97,12 @@ static inline int set_movable_ops(const struct
> > movable_operations *ops, enum pag
> > return -ENOSYS;
> > }
> >
> > +static inline void migration_entry_wait_on_locked(softleaf_t
> > entry, spinlock_t *ptl)
> > + __releases(ptl)
> > +{
> > + spin_unlock(ptl);
> > +}
> > +
> > #endif /* CONFIG_MIGRATION */
> >
> > #ifdef CONFIG_NUMA_BALANCING
> > diff --git a/mm/memory.c b/mm/memory.c
> > index da360a6eb8a4..ed20da5570d5 100644
> > --- a/mm/memory.c
> > +++ b/mm/memory.c
> > @@ -4684,7 +4684,8 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
> > unlock_page(vmf->page);
> > put_page(vmf->page);
> > } else {
> > - pte_unmap_unlock(vmf->pte, vmf-
> > >ptl);
> > + pte_unmap(vmf->pte);
> > + migration_entry_wait_on_locked(ent
> > ry, vmf->ptl);
>
> Code wise this looks fine to me, although it's confusing to see
> migration_entry_wait_on_locked() being called on a non-migration
> entry and
> ideally this would be renamed to something like
> softleaf_entry_wait_on_locked().
>
> Regardless though the documentation for
> migration_entry_wait_on_locked() needs
> updating to justify why calling this on device-private entries is
> valid (because
> it's also just waiting for the page to be unlocked). Along with some
> equivalent
> justification for how we know there is a reference on the device-
> private page:
>
> * If a migration entry exists for the page the migration
> path must hold
> * a valid reference to the page, and it must take the ptl
> to remove the
> * migration entry. So the page is valid until the ptl is
> dropped.
>
> Which is basically just the page is mapped in the page table,
> therefore it must
> have a reference taken for the mapping and the mapping can't be
> removed while we
> hold the PTL.
>
> Thanks.
>
> - Alistair
Thanks for reviewing. Let me respin this for a v4 addressing the above.
/Thomas
>
> > }
> > } else if (softleaf_is_hwpoison(entry)) {
> > ret = VM_FAULT_HWPOISON;
> > --
> > 2.52.0
> >
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2026-02-04 11:47 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-02-03 14:34 [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem Thomas Hellström
2026-02-03 15:34 ` ✓ CI.KUnit: success for mm: Fix a hmm_range_fault() livelock / starvation problem (rev2) Patchwork
2026-02-03 16:08 ` ✗ Xe.CI.BAT: failure " Patchwork
2026-02-04 1:52 ` [PATCH v3] mm: Fix a hmm_range_fault() livelock / starvation problem John Hubbard
2026-02-04 10:59 ` Alistair Popple
2026-02-04 11:47 ` Thomas Hellström
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox