On Thu, 2016-06-09 at 21:36 +0200, Helge Deller wrote: > Hi James, > > I just tried Debian kernel 4.6.1-1 on my historic 715/64 machine, and it > ran into this BUG() in the LASI scsi driver: > > scsi 0:0:6:0: no saved request for untagged cmd > > Any idea? > > Helge > > [ 0.000000] Linux version 4.6.0-1-parisc (debian-kernel@xxxxxxxxxxxxxxxx) (gcc version 5.4.0 20160603 (Debian 5.4.0-3) ) #1 Debian 4.6.1-1 (2016-06-06) > ... > [ 0.000000] Determining PDC firmware type: Snake. > [ 0.000000] model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072 > [ 0.000000] vers 0000000c > [ 0.000000] model 9000/715 > [ 0.000000] Total Memory: 160 MB > ... > [ 43.180000] SCSI subsystem initialized > [ 45.076000] 53c700: Version 2.8 By James.Bottomley@xxxxxxxxxxxxxxxxxxxxx > [ 45.156000] scsi0: 53c710 rev 2 > [ 46.204000] scsi host0: LASI SCSI 53c700 > [ 58.268000] scsi 0:0:6:0: no saved request for untagged cmd > [ 58.336000] ------------[ cut here ]------------ > [ 58.392000] kernel BUG at /build/linux-XAODSw/linux-4.6.1/drivers/scsi/53c700.c:1129! > [ 58.484000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1 > [ 58.580000] task: 1083cdd8 ti: 107b1000 task.ti: 107b1000 > [ 58.644000] > [ 58.660000] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI > [ 58.716000] PSW: 00000000000001001111111100001110 Not tainted > [ 58.788000] r00-03 0004ff0e 0084e388 00a8ea8c 107ba400 > [ 58.848000] r04-07 00000000 00000000 15b88cc0 00000006 > [ 58.912000] r08-11 198ca400 000000ff 00000020 00000000 > [ 58.976000] r12-15 000000ff 00001003 10801020 00000001 > [ 59.036000] r16-19 107b1240 00000002 000000ff 00000001 > [ 59.100000] r20-23 00000001 0000000e 0084f388 00000000 > [ 59.164000] r24-27 107ba500 0083b540 1021a7a4 107b5020 > [ 59.224000] r28-31 00000000 00000040 107ba480 104d52bc > [ 59.288000] sr00-03 00000000 00000000 00000000 0000000d > [ 59.352000] sr04-07 00000000 00000000 00000000 00000000 > [ 59.416000] > [ 59.432000] IASQ: 00000000 00000000 IAOQ: 00a8ea8c 00a8ea90 > [ 59.500000] IIR: 03ffe01f ISR: 0000000d IOR: 00a8ea90 > [ 59.564000] CPU: 0 CR30: 107b1000 CR31: f00effff > [ 59.632000] ORIG_R28: 10855e80 > [ 59.668000] IAOQ[0]: process_script_interrupt+0x13ec/0x16a4 [53c700] > [ 59.748000] IAOQ[1]: process_script_interrupt+0x13f0/0x16a4 [53c700] > [ 59.824000] RP(r2): process_script_interrupt+0x13ec/0x16a4 [53c700] > [ 59.900000] Backtrace: > [ 59.928000] [<00a8ea8c>] process_script_interrupt+0x13ec/0x16a4 [53c700] > [ 60.012000] > [ 60.028000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1 > [ 60.120000] Backtrace: > [ 60.148000] [<1015bffc>] show_stack+0x3c/0x50 > [ 60.204000] [<10425d40>] dump_stack+0x28/0x38 > [ 60.256000] [<1015c180>] die_if_kernel+0x134/0x20c > [ 60.316000] [<1015cd34>] handle_interruption+0x804/0x828 > [ 60.380000] > [ 60.400000] Kernel panic - not syncing: Fatal exception in interrupt > [ 60.400000] ---[ end Kernel panic - not syncing: Fatal exception in interrupt It looks like either an unsolicited reselection or possibly a spurious interrupt left over from something. Can you define NCR_700_DEBUG in drivers/scsi/53c700.h and see what it says? Thanks, James -- 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
