@@ -159,8 +159,7 @@ void etnaviv_core_dump(struct etnaviv_gem_submit *submit)
file_size += sizeof(*iter.hdr) * n_obj;
/* Allocate the file in vmalloc memory, it's likely to be big */
- iter.start = __vmalloc(file_size, GFP_KERNEL | __GFP_NOWARN |
- __GFP_NORETRY);
+ iter.start = __vmalloc(file_size, GFP_NOWAIT | __GFP_NOWARN);
if (!iter.start) {
mutex_unlock(&submit->mmu_context->lock);
dev_warn(gpu->dev, "failed to allocate devcoredump file\n");
@@ -230,5 +229,6 @@ void etnaviv_core_dump(struct etnaviv_gem_submit *submit)
etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data);
- dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL);
+ dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start,
+ GFP_NOWAIT | __GFP_NOWARN);
}
The etnaviv devcoredump is created in the GPU reset path, which must make forward progress to avoid stalling memory reclaim on unsignalled dma fences. The currently used __GFP_NORETRY does not prohibit sleeping on direct reclaim, breaking the forward progress guarantee. Switch to GFP_NOWAIT, which allows background reclaim to be triggered, but avoids any stalls waiting for direct reclaim. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> --- drivers/gpu/drm/etnaviv/etnaviv_dump.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)