On Tue, Jun 30, 2020 at 05:33:25AM +0200, Martin Kepplinger wrote: > > Martin, does this fix the problem? > > > > not quite: mounting works and resuming itself indeed happens now when > copying a file, but the I/O itself doesn't, but says "device offline or > changed": > > [ 167.167615] sd 0:0:0:0: [sda] tag#0 UNKNOWN(0x2003) Result: > hostbyte=0x00 driverbyte=0x08 cmd_age=0s > [ 167.167630] sd 0:0:0:0: [sda] tag#0 Sense Key : 0x6 [current] > [ 167.167638] sd 0:0:0:0: [sda] tag#0 ASC=0x28 ASCQ=0x0 That code stands for "Not-ready to ready transition". It isn't really an error, just a notification. The command should have been retried. > [ 167.167648] sd 0:0:0:0: [sda] tag#0 CDB: opcode=0x28 28 00 00 00 24 > c2 00 00 01 00 > [ 167.167658] blk_update_request: I/O error, dev sda, sector 9410 op > 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 > [ 167.178327] FAT-fs (sda1): FAT read failed (blocknr 1218) And it should not have failed. Martin or James, any ideas about this? > [ 167.183895] sd 0:0:0:0: [sda] tag#0 device offline or changed > [ 167.189695] blk_update_request: I/O error, dev sda, sector 5101888 op > 0x0:(READ) flags 0x80700 phys_seg 8 prio class 0 > [ 167.200510] sd 0:0:0:0: [sda] tag#0 device offline or changed > > > and a later try to copy a file only yields (mostly my own debug prints): > > > [ 371.110798] blk_queue_enter: wait_event: pm=0 > [ 371.300666] scsi_runtime_resume > [ 371.303834] scsi_runtime_resume > [ 371.307007] scsi_runtime_resume > [ 371.310213] sd 0:0:0:0: [sda] tag#0 device offline or changed > [ 371.316011] blk_update_request: I/O error, dev sda, sector 5101888 op > 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 No way to tell from the log what caused this error. > [ 372.560690] scsi_runtime_suspend > [ 372.563968] scsi_runtime_suspend > [ 372.567237] scsi_runtime_suspend > > thanks Alan for taking the time and trying to fix this! you're close. > what is missing? At this point I don't know. Alan Stern
