diff options
| author | Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> | 2021-03-18 19:06:16 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-03-19 18:54:47 +0300 |
| commit | dc85fc9d05d23591ddfde400c817413765611ec7 (patch) | |
| tree | 24759654fadf0fca299adfdcdd33f0aab8e27320 /sound/core/pcm_memory.c | |
| parent | 8518c6486c2b8355e0781f8ee53c3c3f8427d96c (diff) | |
| download | linux-dc85fc9d05d23591ddfde400c817413765611ec7.tar.xz | |
ALSA: pcm: Add debug print on memory allocation failure
Add debug prints after calls of do_alloc_pages. One simplification would
be to move print into do_alloc_pages, however it would cause spam in
logs, as preallocate_pcm_pages loops over do_alloc_pages trying lower
values in case of failures.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20210318160618.2504068-2-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/pcm_memory.c')
| -rw-r--r-- | sound/core/pcm_memory.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c index 289dd1fd8fe7..2878c4c23583 100644 --- a/sound/core/pcm_memory.c +++ b/sound/core/pcm_memory.c @@ -176,6 +176,10 @@ static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry, substream->dma_buffer.dev.dev, size, &new_dmab) < 0) { buffer->error = -ENOMEM; + pr_debug("ALSA pcmC%dD%d%c,%d:%s: cannot preallocate for size %zu\n", + substream->pcm->card->number, substream->pcm->device, + substream->stream ? 'c' : 'p', substream->number, + substream->pcm->name, size); return; } substream->buffer_bytes_max = size; @@ -400,6 +404,10 @@ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) substream->dma_buffer.dev.dev, size, dmab) < 0) { kfree(dmab); + pr_debug("ALSA pcmC%dD%d%c,%d:%s: cannot preallocate for size %zu\n", + substream->pcm->card->number, substream->pcm->device, + substream->stream ? 'c' : 'p', substream->number, + substream->pcm->name, size); return -ENOMEM; } } |