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| author | Meghana Malladi <m-malladi@ti.com> | 2025-05-06 16:35:45 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-05-07 18:19:11 -0700 |
| commit | 8b3fae3e2376b70b7a76005263bc34d034b9c7bf (patch) | |
| tree | 1643b5844435c6eb61b71830ccca4f690556670c /scripts/generate_rust_analyzer.py | |
| parent | e5641daa0ea1932e2b0fa7f27843e712244f6538 (diff) | |
| download | linux-8b3fae3e2376b70b7a76005263bc34d034b9c7bf.tar.gz linux-8b3fae3e2376b70b7a76005263bc34d034b9c7bf.tar.bz2 linux-8b3fae3e2376b70b7a76005263bc34d034b9c7bf.zip | |
net: ti: icssg-prueth: Fix kernel panic during concurrent Tx queue access
Add __netif_tx_lock() to ensure that only one packet is being
transmitted at a time to avoid race conditions in the netif_txq
struct and prevent packet data corruption. Failing to do so causes
kernel panic with the following error:
[ 2184.746764] ------------[ cut here ]------------
[ 2184.751412] kernel BUG at lib/dynamic_queue_limits.c:99!
[ 2184.756728] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
logs: https://gist.github.com/MeghanaMalladiTI/9c7aa5fc3b7fb03f87c74aad487956e9
The lock is acquired before calling emac_xmit_xdp_frame() and released after the
call returns. This ensures that the TX queue is protected from concurrent access
during the transmission of XDP frames.
Fixes: 62aa3246f462 ("net: ti: icssg-prueth: Add XDP support")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250506110546.4065715-3-m-malladi@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions