* md: bug in file raid5.c, line 540 (kernel 2.4.20)
@ 2003-04-13 22:21 Stephan van Hienen
2003-04-13 22:37 ` Lars Marowsky-Bree
2003-04-13 22:58 ` Neil Brown
0 siblings, 2 replies; 3+ messages in thread
From: Stephan van Hienen @ 2003-04-13 22:21 UTC (permalink / raw)
To: linux-raid
trying to do a raidsetfaulty on my hotspare disk (i was trying to see if i
would get any email from mdadm --monitor)
i can reproduce this bug
]# cat /proc/mdstat
Personalities : [raid0] [raid5]
read_ahead 1024 sectors
md0 : active raid5 sdj1[13](F) sdo1[12] sdn1[11] sdi1[10] sdm1[9] sdl1[8]
sdk1[7] sdh1[6] sdg1[5] sdf1[4] sde1[3] sdd1[2] sdc1[1] sdb1[0]
2109878784 blocks level 5, 128k chunk, algorithm 0 [13/13]
[UUUUUUUUUUUUU]
unused devices: <none>
dmesg output :
----------
md: bug in file raid5.c, line 540
md: **********************************
md: * <COMPLETE RAID STATE PRINTOUT> *
md: **********************************
md0:
<sdj1><sdo1><sdn1><sdi1><sdm1><sdl1><sdk1><sdh1><sdg1><sdf1><sde1><sdd1><sd
c1><sdb1> array superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd079 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:13,sdj1(8,145),R:13,S:0>
md: rdev sdj1: O:sdj1, SZ:175823232 F:0 DN:13 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd14a E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:13,sdj1(8,145),R:13,S:0>
md: rdev sdo1: O:sdo1, SZ:175823232 F:0 DN:12 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd19e E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:12,sdo1(8,225),R:12,S:6>
md: rdev sdn1: O:sdn1, SZ:175823232 F:0 DN:11 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd18c E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:11,sdn1(8,209),R:11,S:6>
md: rdev sdi1: O:sdi1, SZ:175823232 F:0 DN:10 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd13a E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:10,sdi1(8,129),R:10,S:6>
md: rdev sdm1: O:sdm1, SZ:175823232 F:0 DN:9 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd178 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:9,sdm1(8,193),R:9,S:6>
md: rdev sdl1: O:sdl1, SZ:175823232 F:0 DN:8 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd166 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:8,sdl1(8,177),R:8,S:6>
md: rdev sdk1: O:sdk1, SZ:175823232 F:0 DN:7 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd154 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:7,sdk1(8,161),R:7,S:6>
md: rdev sdh1: O:sdh1, SZ:175823232 F:0 DN:6 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd122 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:6,sdh1(8,113),R:6,S:6>
md: rdev sdg1: O:sdg1, SZ:175823232 F:0 DN:5 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd110 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:5,sdg1(8,97),R:5,S:6>
md: rdev sdf1: O:sdf1, SZ:175823232 F:0 DN:4 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd0fe E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:4,sdf1(8,81),R:4,S:6>
md: rdev sde1: O:sde1, SZ:175823232 F:0 DN:3 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd0ec E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:3,sde1(8,65),R:3,S:6>
md: rdev sdd1: O:sdd1, SZ:175823232 F:0 DN:2 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd0da E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:2,sdd1(8,49),R:2,S:6>
md: rdev sdc1: O:sdc1, SZ:175823232 F:0 DN:1 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd0c8 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:1,sdc1(8,33),R:1,S:6>
md: rdev sdb1: O:sdb1, SZ:175823232 F:0 DN:0 <6>md: rdev superblock:
md: SB: (V:0.90.0) ID:<1f645dc4.5abb183e.9dda5de2.68373dbb> CT:3e5a0d81
md: L5 S175823232 ND:14 RD:13 md0 LO:0 CS:131072
md: UT:3e997fdc ST:0 AD:13 WD:14 FD:0 SD:1 CSUM:b0ccd0b6 E:00000041
D 0: DISK<N:0,sdb1(8,17),R:0,S:6>
D 1: DISK<N:1,sdc1(8,33),R:1,S:6>
D 2: DISK<N:2,sdd1(8,49),R:2,S:6>
D 3: DISK<N:3,sde1(8,65),R:3,S:6>
D 4: DISK<N:4,sdf1(8,81),R:4,S:6>
D 5: DISK<N:5,sdg1(8,97),R:5,S:6>
D 6: DISK<N:6,sdh1(8,113),R:6,S:6>
D 7: DISK<N:7,sdk1(8,161),R:7,S:6>
D 8: DISK<N:8,sdl1(8,177),R:8,S:6>
D 9: DISK<N:9,sdm1(8,193),R:9,S:6>
D 10: DISK<N:10,sdi1(8,129),R:10,S:6>
D 11: DISK<N:11,sdn1(8,209),R:11,S:6>
D 12: DISK<N:12,sdo1(8,225),R:12,S:6>
D 13: DISK<N:13,sdj1(8,145),R:13,S:0>
md: THIS: DISK<N:0,sdb1(8,17),R:0,S:6>
md: **********************************
md: recovery thread got woken up ...
md: recovery thread finished ...
----------
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: md: bug in file raid5.c, line 540 (kernel 2.4.20)
2003-04-13 22:21 md: bug in file raid5.c, line 540 (kernel 2.4.20) Stephan van Hienen
@ 2003-04-13 22:37 ` Lars Marowsky-Bree
2003-04-13 22:58 ` Neil Brown
1 sibling, 0 replies; 3+ messages in thread
From: Lars Marowsky-Bree @ 2003-04-13 22:37 UTC (permalink / raw)
To: Stephan van Hienen, linux-raid
On 2003-04-14T00:21:27,
Stephan van Hienen <raid@a2000.nu> said:
> trying to do a raidsetfaulty on my hotspare disk (i was trying to see if i
> would get any email from mdadm --monitor)
>
> i can reproduce this bug
Yes, it doesn't seem like this is a not-well-exercised code path. I've fixed
that for multipath in our tree, but as it depends on some patches /
enhancements to multipathing I can't get Neil, mingo or anyone else to comment
on I've not bothered to post the patch.
The current advise seems to be to not do that...
Sincerely,
Lars Marowsky-Brée <lmb@suse.de>
--
SuSE Labs - Research & Development, SuSE Linux AG
"If anything can go wrong, it will." "Chance favors the prepared (mind)."
-- Capt. Edward A. Murphy -- Louis Pasteur
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: md: bug in file raid5.c, line 540 (kernel 2.4.20)
2003-04-13 22:21 md: bug in file raid5.c, line 540 (kernel 2.4.20) Stephan van Hienen
2003-04-13 22:37 ` Lars Marowsky-Bree
@ 2003-04-13 22:58 ` Neil Brown
1 sibling, 0 replies; 3+ messages in thread
From: Neil Brown @ 2003-04-13 22:58 UTC (permalink / raw)
To: Stephan van Hienen; +Cc: linux-raid
On Monday April 14, raid@a2000.nu wrote:
> trying to do a raidsetfaulty on my hotspare disk (i was trying to see if i
> would get any email from mdadm --monitor)
1/ The only real BUG here is the fact that it prints out a confusing
message. The real meaning of "bug in file raid5.c, line 540" is "I
got a failure message on a drive that I wasn't even using".
2/ A hot spare cannot fail in 'real life' as it is not being
used. i.e. you cannot fail to do something when you are not being
asked to do anything.
So no, mdadm won't report it, as it cannot happen.
(I'm not saying that a hot spare cannot fail. I might suddenly catch
on fire for all I know. But there is no sense in which that is a
meaningful failure for md.)
NeilBrown
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2003-04-13 22:58 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2003-04-13 22:21 md: bug in file raid5.c, line 540 (kernel 2.4.20) Stephan van Hienen
2003-04-13 22:37 ` Lars Marowsky-Bree
2003-04-13 22:58 ` Neil Brown
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