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a=ed25519-sha256; t=1777983885; l=1723; i=umang.chheda@oss.qualcomm.com; s=20260328; h=from:subject:message-id; bh=85/U6iXBPakM0Mmmb5NPMjAPvvGqfJ6KU2VNXgLZ+Sc=; b=uAueX0E+J7mO3vSlmsfq2s5T3DTennvda5xbsWtVnYuvom+4lJANe1HZ9CTFuHCFI9bv0MzJh UVBLIZVfoxaCfAJSibykZ21OmsQSeQN479uLTCjjakaC2Y6xWj7Te3x X-Developer-Key: i=umang.chheda@oss.qualcomm.com; a=ed25519; pk=3+tjZ+PFFYphz0Vvu4B14pBQSzqcG0jZAQspTaDRQYA= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA1MDExNyBTYWx0ZWRfXxfZUPzf4s0CA QLKSy7qK+dg4Q2Zvy2g8QpKAW7h/WrdGJ2cUzN+SagezqRIoaOg4DpnaGbACMMlFT9lDws1aQof J6RlL+MtwcjTUao+evE+LQqSItjezFCaUeVS8Zzz56wtGZ2iHVoqyj1TJ7r/1Agq5kNbadWMgN0 aW2SFTbak3tR3f3qga4tkHChuUYmY46j4M99OgPKQxr9lHwkHDaNbgeozKNzpI6aX/64YQ4GoWG t4kO70zAdxZzhRK7H5aajvIGRiuDMGt1SfOfLWOR0O9ADZZL3fj+sN/qfIodf6WFIRglSFNVYx4 hfc/XJdH9myg/Khryx4f3+VUYlfRrZQsB5Itw/OYFCuhzEBCOyl2mWy6MaSbSqEEZxEHQem/s/Z wtXIT/LWgwCPwRvezRStLwD9btrVUkP16ZhWboqkjydLbSidYNJZynufvWve4+9ppqwYHbLG2ex 8n3GbzKO6BBd00EdOHA== X-Proofpoint-GUID: gDL06UihwZ69yCeBCVwLCMjtdsvNUOZf X-Proofpoint-ORIG-GUID: gDL06UihwZ69yCeBCVwLCMjtdsvNUOZf X-Authority-Analysis: v=2.4 cv=b6KCJNGx c=1 sm=1 tr=0 ts=69f9e1ae cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=y-mMqNAVNQw5A1T741kA:9 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-05_02,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605050117 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260505_052519_198563_0F00C8F8 X-CRM114-Status: GOOD ( 15.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The driver unconditionally calls panic() whenever an unrecoverable, uncontainable UE (UET_UC or UET_UEU) is detected. There is no way for the user to suppress this behaviour, which makes it difficult to test UE injection or to run in environments where a kernel panic on every UE is undesirable. Add a module parameter `aest_panic_on_ue` When set to 0 the driver logs the UE and continues instead of panicking. Usage: # Boot time (kernel cmdline) aest.aest_panic_on_ue=0 # Runtime echo 0 > /sys/module/aest/parameters/aest_panic_on_ue Signed-off-by: Umang Chheda --- drivers/ras/aest/aest-core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/ras/aest/aest-core.c b/drivers/ras/aest/aest-core.c index b4f4c975da1d..9ce782a66edf 100644 --- a/drivers/ras/aest/aest-core.c +++ b/drivers/ras/aest/aest-core.c @@ -22,6 +22,11 @@ DEFINE_PER_CPU(struct aest_device, percpu_adev); #undef pr_fmt #define pr_fmt(fmt) "AEST: " fmt +static bool aest_panic_on_ue; +module_param(aest_panic_on_ue, bool, 0644); +MODULE_PARM_DESC(aest_panic_on_ue, + "Panic on unrecoverable error: 0=off 1=on (default: 1)"); + #ifdef CONFIG_DEBUG_FS struct dentry *aest_debugfs; #endif @@ -342,9 +347,11 @@ void aest_proc_record(struct aest_record *record, void *data, bool fake) aest_record_info( record, "Simulated error! Skip panic due to fault injection\n"); - else + else if (aest_panic_on_ue) aest_panic(record, ®s, "AEST: unrecoverable error encountered"); + else + aest_record_err(record, "UE detected, panic suppressed\n"); } aest_log(record, ®s); -- 2.34.1