git: 8af6aee96ed6 - main - virtual_oss(8): Remove floating point formats from preference list
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Date: Tue, 30 Sep 2025 13:27:04 UTC
The branch main has been updated by christos:
URL: https://cgit.FreeBSD.org/src/commit/?id=8af6aee96ed609456900c6dd92dafabac5e89c0a
commit 8af6aee96ed609456900c6dd92dafabac5e89c0a
Author: Christos Margiolis <christos@FreeBSD.org>
AuthorDate: 2025-09-30 13:13:46 +0000
Commit: Christos Margiolis <christos@FreeBSD.org>
CommitDate: 2025-09-30 13:25:53 +0000
virtual_oss(8): Remove floating point formats from preference list
virtual_oss(8) chooses formats based on preference lists (see
VPREFERRED_*) for each sample depth (-b option). However, if we, for
example, use 32 bits LE for the sample depth, what will end up happening
is that the format chosen will be 0x10001000, which corresponds to
AFMT_S32_LE *and* AFMT_F32_LE OR'd together. This happens because the
preference lists include both AFMT_S32_* and AFMT_F32_* in the 32-bit
cases.
Because we essentially end up using an invalid format, sound(4) will
eventually reach pcm_sample_write()'s (sys/dev/sound/pcm/pcm.h)
__assert_unreachable() case.
This patch is a temporary fix to address the panic, until a proper
solution for using floating point formats is found.
PR: 289904
Sponsored by: The FreeBSD Foundation
MFC after: 2 days
---
usr.sbin/virtual_oss/virtual_oss/int.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/usr.sbin/virtual_oss/virtual_oss/int.h b/usr.sbin/virtual_oss/virtual_oss/int.h
index a48e33d7f837..b3cc573ba8a9 100644
--- a/usr.sbin/virtual_oss/virtual_oss/int.h
+++ b/usr.sbin/virtual_oss/virtual_oss/int.h
@@ -65,13 +65,13 @@ extern pthread_cond_t atomic_cv;
#define VTYPE_WAV_DAT 2
#define VPREFERRED_SNE_AFMT \
- (AFMT_S8 | AFMT_S16_NE | AFMT_S24_NE | AFMT_S32_NE | AFMT_F32_NE)
+ (AFMT_S8 | AFMT_S16_NE | AFMT_S24_NE | AFMT_S32_NE)
#define VPREFERRED_UNE_AFMT \
(AFMT_U8 | AFMT_U16_NE | AFMT_U24_NE | AFMT_U32_NE)
#define VPREFERRED_SLE_AFMT \
- (AFMT_S8 | AFMT_S16_LE | AFMT_S24_LE | AFMT_S32_LE | AFMT_F32_LE)
+ (AFMT_S8 | AFMT_S16_LE | AFMT_S24_LE | AFMT_S32_LE)
#define VPREFERRED_SBE_AFMT \
- (AFMT_S8 | AFMT_S16_BE | AFMT_S24_BE | AFMT_S32_BE | AFMT_F32_BE)
+ (AFMT_S8 | AFMT_S16_BE | AFMT_S24_BE | AFMT_S32_BE)
#define VPREFERRED_ULE_AFMT \
(AFMT_U8 | AFMT_U16_LE | AFMT_U24_LE | AFMT_U32_LE)
#define VPREFERRED_UBE_AFMT \