On 13/03/2023 15:41, Marc Gonzalez wrote: > NOTA BENE: for mmc1, in both runs, kernel probes 10 times and fails with: > > [ 1.265231] mmc_attach_sdio failed with -110 > [ 1.373006] mmc1: new HS200 MMC card at address 0001 > [ 1.377242] mmcblk1: mmc1:0001 SCA16G 14.7 GiB > [ 1.383718] mmcblk1boot0: mmc1:0001 SCA16G 4.00 MiB > [ 1.387257] mmcblk1boot1: mmc1:0001 SCA16G 4.00 MiB > [ 1.391912] mmcblk1rpmb: mmc1:0001 SCA16G 4.00 MiB, chardev (246:0) > > mmc_attach_sdio() fails but mmc_add_card() succeeds anyway...? > Confused. > mmc_attach_sdio() doesn't call mmc_add_card() if it exits prematurely. This might be because mmc1 and mmc2 are of "different nature". [ 2.083053] mmc2: new ultra high speed SDR50 SDIO card at address 0001 [ 2.093918] CPU: 1 PID: 35 Comm: kworker/1:1 Not tainted 6.2.0-rc8 #300 [ 2.100464] Hardware name: SEI Robotics SEI510 (DT) [ 2.105296] Workqueue: events_freezable mmc_rescan [ 2.110038] Call trace: [ 2.126856] mmc_add_card+0xfc/0x2d0 [ 2.130392] mmc_attach_sdio+0x22c/0x3c0 [ 2.134273] mmc_rescan+0x258/0x2f0 [ 2.137723] process_one_work+0x1cc/0x320 [ 2.141691] worker_thread+0x14c/0x450 [ 2.145399] kthread+0x10c/0x110 [ 2.148591] ret_from_fork+0x10/0x20 /* below message from call_driver_probe() getting ENODEV */ [ 2.152299] mmcblk: probe of mmc2:0001 rejects match -19 [ 2.176589] YO mmc1 [ 2.180263] YO mmc1 [ 2.183937] YO mmc1 [ 2.187621] YO mmc1 [ 2.191299] YO mmc1 [ 2.194972] YO mmc1 [ 2.198649] YO mmc1 [ 2.202326] YO mmc1 [ 2.206000] YO mmc1 [ 2.209674] YO mmc1 [ 2.209687] mmc_attach_sdio failed with -110 [ 2.318954] mmc1: new HS200 MMC card at address 0001 [ 2.322515] CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 6.2.0-rc8 #300 [ 2.329061] Hardware name: SEI Robotics SEI510 (DT) [ 2.333892] Workqueue: events_freezable mmc_rescan [ 2.338635] Call trace: [ 2.355453] mmc_add_card+0xfc/0x2d0 [ 2.358989] mmc_attach_mmc+0xf0/0x180 [ 2.362698] mmc_rescan+0x280/0x2f0 [ 2.366148] process_one_work+0x1cc/0x320 [ 2.370115] worker_thread+0x14c/0x450 [ 2.373824] kthread+0x10c/0x110 [ 2.377015] ret_from_fork+0x10/0x20 [ 2.381265] mmcblk1: mmc1:0001 SCA16G 14.7 GiB [ 2.389945] mmcblk1boot0: mmc1:0001 SCA16G 4.00 MiB [ 2.391199] mmcblk1boot1: mmc1:0001 SCA16G 4.00 MiB [ 2.395897] mmcblk1rpmb: mmc1:0001 SCA16G 4.00 MiB, chardev (246:0)
