> Hi Avri, all, > > > > [ 0.449917] ufshcd-renesas e6860000.ufs: ufshcd_query_attr: opcode > 0x03 > > > for idn 1 failed, index 0, err = 253 > > > [ 0.452035] ufshcd-renesas e6860000.ufs: ufshcd_query_attr: opcode > 0x03 > > > for idn 1 failed, index 0, err = 253 > > > [ 0.453859] ufshcd-renesas e6860000.ufs: ufshcd_query_attr: opcode > 0x03 > > > for idn 1 failed, index 0, err = 253 > > > [ 0.453874] ufshcd-renesas e6860000.ufs: ufshcd_query_attr_retry: > query > > > attribute, idn 1, failed with error 253 after 3 retires > > Should be interesting to find out who is trying to read an undefined > (reserved) attribute in your system. > > So, the call trace is: > > [ 0.455361] Call trace: > [ 0.455521] ufshcd_query_attr_retry+0x68/0xb0 > [ 0.455808] ufshpb_get_dev_info+0x80/0x110 > [ 0.456083] ufshcd_probe_hba+0xce0/0x10d0 > [ 0.456349] ufshcd_async_scan+0x34/0x310 > [ 0.456609] async_run_entry_fn+0x34/0x130 > [ 0.456873] process_one_work+0x1e4/0x434 > [ 0.457136] worker_thread+0x174/0x4dc > [ 0.457379] kthread+0xdc/0xe0 > [ 0.457580] ret_from_fork+0x10/0x20 > > which leads me to this call in ufshpb_get_dev_info(): > > 2622 ret = ufshcd_query_attr_retry(hba, > UPIU_QUERY_OPCODE_READ_ATTR, > 2623 QUERY_ATTR_IDN_MAX_HPB_SINGLE_CMD, 0, 0, > &max_single_cmd); > > And from here on, I miss the UFS experience to debug further. But I will > happily provide more information if people give me pointers. Ah ok. That's cool - HPB is enable on your platform. For some reason JEDEC didn't merge the HPB amendment into UFS4.0 - and I forgot all about that attribute. Thanks, Avri > > All the best, > > Wolfram
