On 28.06.2024 11:49:38, Oleksij Rempel wrote: > It seems to be spi_mux specific. We have seen similar trace on other system > with spi_mux. Here is the other backtrace from another imx8mp system with a completely different workload. Both have in common that they use a spi_mux on the spi-imx driver. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000dd0 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000046760000 [0000000000000dd0] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: can_raw can ti_ads7950 industrialio_triggered_buffer kfifo_buf spi_mux fsl_imx8_ddr_perf at24 flexcan caam can_dev error rtc_snvs imx8mm_thermal spi_imx capture_events_irq cfg80211 iio_trig_hrtimer industrialio_sw_trigger ind> CPU: 3 PID: 177 Comm: spi5 Not tainted 6.9.0 #1 Hardware name: xxxxxxxxxxxxxxxx (xxxxxxxxx) (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : spi_res_release+0x24/0xb8 lr : spi_async+0xac/0x118 sp : ffff8000823fbcc0 x29: ffff8000823fbcc0 x28: 0000000000000000 x27: 0000000000000000 x26: ffff8000807bef88 x25: ffff80008115c008 x24: 0000000000000000 x23: ffff8000826c3938 x22: 0000000000000000 x21: ffff0000076a9800 x20: 0000000000000000 x19: 0000000000000dc8 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff88c0e760 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: ffff8000815a1f98 x10: ffff8000823fbb40 x9 : ffff8000807b8420 x8 : ffff800081508000 x7 : 0000000000000004 x6 : 0000000003ce4c66 x5 : 0000000001000000 x4 : 0000000000000000 x3 : 0000000001000000 x2 : 0000000000000000 x1 : ffff8000826c38e0 x0 : ffff0000076a9800 Call trace: spi_res_release+0x24/0xb8 spi_async+0xac/0x118 spi_mux_transfer_one_message+0xb8/0xf0 [spi_mux] __spi_pump_transfer_message+0x260/0x5d8 __spi_pump_messages+0xdc/0x320 spi_pump_messages+0x20/0x38 kthread_worker_fn+0xdc/0x220 kthread+0x118/0x128 ret_from_fork+0x10/0x20 Code: a90153f3 a90363f7 91016037 f9403033 (f9400674) ---[ end trace 0000000000000000 ]--- regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung Nürnberg | Phone: +49-5121-206917-129 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |
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