Hi,
I am seeing this crash report in dmesg:
[ 3936.938245] nvgpu: 17000000.gv11b gk20a_gr_isr:5994 [ERR] pgraph intr: 0x00000001, chid: INVALID
[ 3936.946235] nvgpu: 17000000.gv11b nvgpu_pmu_enable_elpg:208 [WRN] nvgpu_pmu_enable_elpg(): possible elpg refcnt mismatch. elpg refcnt=2
[ 3936.959463] ------------[ cut here ]------------
[ 3936.964467] WARNING: CPU: 2 PID: 3118 at /nvidia_sdk/JetPack_4.4_Linux_JETSON_XAVIER_NX/Linux_for_Tegra/sources/kernel/nvgpu/drivers/gpu/nvgpu/common/pmu/pmu_pg.c:209 nvgpu_pmu_enable_elpg+0x22c/0x2d0 [nvgpu]
[ 3936.984348] Modules linked in: bnep fuse cdc_acm uvcvideo zram overlay ar1335(O) 88x2bu(O) cfg80211 spidev nvgpu bluedroid_pm ip_tables x_tables
[ 3936.984402] CPU: 2 PID: 3118 Comm: irq/466-gk20a_s Tainted: G W O 4.9.140+ #5
[ 3936.984406] Hardware name: NVIDIA Jetson Xavier NX Developer Kit (DT)
[ 3936.984411] task: ffffffc1e0b48e00 task.stack: ffffffc1d953c000
[ 3936.984823] PC is at nvgpu_pmu_enable_elpg+0x22c/0x2d0 [nvgpu]
[ 3936.985237] LR is at nvgpu_pmu_enable_elpg+0x22c/0x2d0 [nvgpu]
[ 3936.985242] pc : [] lr : [] pstate: 40c00045
[ 3936.985245] sp : ffffffc1d953fbe0
[ 3936.985248] x29: ffffffc1d953fbf0 x28: 0000000000000000
[ 3936.985257] x27: 0000000000000000 x26: 0000000000000000
[ 3936.985265] x25: ffffff8001062300 x24: ffffffc1d950b000
[ 3936.985272] x23: ffffffc1d9502d28 x22: ffffff8001096b90
[ 3936.985279] x21: ffffff80010699a8 x20: ffffff8001069a20
[ 3936.985286] x19: ffffffc1d9500000 x18: 0000000000000010
[ 3936.985294] x17: 0000007f784671d0 x16: 0000000000000000
[ 3936.985301] x15: ffffffffffffffff x14: 6374616d73696d20
[ 3936.985309] x13: 746e636665722067 x12: 706c6520656c6269
[ 3936.985316] x11: 73736f70203a2928 x10: 000000000005832f
[ 3936.985324] x9 : 616e655f756d705f x8 : ffffff80083d3788
[ 3936.985333] x7 : ffffff8009ea4198 x6 : ffffffc1ffd3ebf0
[ 3936.985340] x5 : ffffffc1ffd3ebf0 x4 : 0000000000000000
[ 3936.985347] x3 : ffffffc1ffd447f8 x2 : ffffffc1ffd3ebf0
[ 3936.985355] x1 : ffffffc1e0b48e00 x0 : 0000000000000089
[ 3936.985366] —[ end trace b444cbcff3b3a1ab ]—
[ 3936.989332] Call trace:
[ 3936.989747] [] nvgpu_pmu_enable_elpg+0x22c/0x2d0 [nvgpu]
[ 3936.990157] [] nvgpu_pmu_pg_global_enable+0x100/0x108 [nvgpu]
[ 3936.990562] [] nvgpu_pg_elpg_enable+0xb0/0xc8 [nvgpu]
[ 3936.990961] [] mc_gp10b_isr_stall+0x1dc/0x218 [nvgpu]
[ 3936.991371] [] nvgpu_intr_thread_stall+0x50/0x1d8 [nvgpu]
[ 3936.991775] [] gk20a_intr_thread_stall+0x20/0x30 [nvgpu]
[ 3936.991786] [] irq_thread_fn+0x30/0x80
[ 3936.991792] [] irq_thread+0x11c/0x1a8
[ 3936.991799] [] kthread+0xec/0xf0
[ 3936.991806] [] ret_from_fork+0x10/0x30
After this my system becomes dead slow. What is this error and how to fix it? Any clue? I am using Jetson Xavier NX with Jetpack 4.4