> On 2014-10-29 05:46, Meelis Roos wrote: > > > I tried 3.18-rc2 with blk-mq default on on HP ProLiant DL380 G3 (with HP > > > CCISS RAID controller). It fails late in the bootup with "task > > > scsi_eh_1:720 blocked for more than 120 seconds." messages. > > > > > > Booting with scsi_mod.use_blk_mq=0 fixes the problem. > > > > Another test server with MPT SCSI RAID has similar problem, > > scsi_mode.use_blk_mq=0 cures it but I can not get good trace (no serail > > console). 3.18.0-rc2-00043-gf7e87a4 was tested there. > > The first issue looks like scsi cdrom and error handling, it must be leaking > requests hence we hang on allocation of a new one. cciss doesn't use blk_mq > regardless of the scsi setting. Does the mpt box also have a libata driven > cdrom? Yes, it does. -- Meelis Roos (mroos@xxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
