From Bugzilla Helper: Description of problem: Attempting to raidhotremove an active disk fails (which is fine) but also triggers a "bug in file md.c, line 2344" kernel message. Version-Release number of selected component (if applicable): kernel-2.4.9-34 raidtools-0.90-24 How reproducible: Always Steps to Reproduce: Given the following RAID-1 configuration (2 x 2GB IDE disks): # cat /proc/mdstat Personalities : [raid1] read_ahead 1024 sectors md2 : active raid1 hda3[1] hdc3[0] 86592 blocks [2/2] [UU] md0 : active raid1 hda2[1] hdc2[0] 1963520 blocks [2/2] [UU] md1 : active raid1 hda1[1] hdc1[0] 11968 blocks [2/2] [UU] unused devices: <none> 1. raidhotremove /dev/md1 /dev/hdc1 2. dmesg Actual Results: # rpm -q kernel raidtools kernel-2.4.9-34 raidtools-0.90-24 # raidhotremove /dev/md1 /dev/hdc1 /dev/md1: can not hot-remove disk: disk busy! # dmesg [snip] md: trying to remove hdc1 from md1 ... md: bug in file md.c, line 2344 md: ********************************** md: * <COMPLETE RAID STATE PRINTOUT> * md: ********************************** md2: <hda3><hdc3> array superblock: md: SB: (V:0.90.0) ID:<d07555b9.992db18e.093f16b5.08a211cc> CT:3af89454 md: L1 S00086592 ND:3 RD:2 md2 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:9d21e6e0 E:0000008e D 0: DISK<N:0,hdc3(22,3),R:0,S:6> D 1: DISK<N:1,hda3(3,3),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:1,hda3(3,3),R:1,S:6> md: rdev hda3: O:hda3, SZ:00086592 F:0 DN:1 md: rdev superblock: md: SB: (V:0.90.0) ID:<d07555b9.992db18e.093f16b5.08a211cc> CT:3af89454 md: L1 S00086592 ND:3 RD:2 md2 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:9d21e710 E:0000008e D 0: DISK<N:0,hdc3(22,3),R:0,S:6> D 1: DISK<N:1,hda3(3,3),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:1,hda3(3,3),R:1,S:6> md: rdev hdc3: O:hdc3, SZ:00086592 F:0 DN:0 md: rdev superblock: md: SB: (V:0.90.0) ID:<d07555b9.992db18e.093f16b5.08a211cc> CT:3af89454 md: L1 S00086592 ND:3 RD:2 md2 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:9d21e721 E:0000008e D 0: DISK<N:0,hdc3(22,3),R:0,S:6> D 1: DISK<N:1,hda3(3,3),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:0,hdc3(22,3),R:0,S:6> md0: <hda2><hdc2> array superblock: md: SB: (V:0.90.0) ID:<84265c24.6e5902a3.692c07de.f37ce443> CT:3af89435 md: L1 S01963520 ND:3 RD:2 md0 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:70e2a59d E:0000008e D 0: DISK<N:0,hdc2(22,2),R:0,S:6> D 1: DISK<N:1,hda2(3,2),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:1,hda2(3,2),R:1,S:6> md: rdev hda2: O:hda2, SZ:01963520 F:0 DN:1 md: rdev superblock: md: SB: (V:0.90.0) ID:<84265c24.6e5902a3.692c07de.f37ce443> CT:3af89435 md: L1 S01963520 ND:3 RD:2 md0 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:70e2a5cd E:0000008e D 0: DISK<N:0,hdc2(22,2),R:0,S:6> D 1: DISK<N:1,hda2(3,2),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:1,hda2(3,2),R:1,S:6> md: rdev hdc2: O:hdc2, SZ:01963520 F:0 DN:0 md: rdev superblock: md: SB: (V:0.90.0) ID:<84265c24.6e5902a3.692c07de.f37ce443> CT:3af89435 md: L1 S01963520 ND:3 RD:2 md0 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:70e2a5de E:0000008e D 0: DISK<N:0,hdc2(22,2),R:0,S:6> D 1: DISK<N:1,hda2(3,2),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:0,hdc2(22,2),R:0,S:6> md1: <hda1><hdc1> array superblock: md: SB: (V:0.90.0) ID:<26f8fee6.a672ebe9.42ed52e4.f1ba8c2d> CT:3af8944c md: L1 S00011968 ND:3 RD:2 md1 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:23b05d6c E:00000090 D 0: DISK<N:0,hdc1(22,1),R:0,S:6> D 1: DISK<N:1,hda1(3,1),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:1,hda1(3,1),R:1,S:6> md: rdev hda1: O:hda1, SZ:00011968 F:0 DN:1 md: rdev superblock: md: SB: (V:0.90.0) ID:<26f8fee6.a672ebe9.42ed52e4.f1ba8c2d> CT:3af8944c md: L1 S00011968 ND:3 RD:2 md1 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:23b05d9c E:00000090 D 0: DISK<N:0,hdc1(22,1),R:0,S:6> D 1: DISK<N:1,hda1(3,1),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:1,hda1(3,1),R:1,S:6> md: rdev hdc1: O:hdc1, SZ:00011968 F:0 DN:0 md: rdev superblock: md: SB: (V:0.90.0) ID:<26f8fee6.a672ebe9.42ed52e4.f1ba8c2d> CT:3af8944c md: L1 S00011968 ND:3 RD:2 md1 LO:0 CS:32768 md: UT:3d780019 ST:0 AD:2 WD:2 FD:1 SD:0 CSUM:23b05dad E:00000090 D 0: DISK<N:0,hdc1(22,1),R:0,S:6> D 1: DISK<N:1,hda1(3,1),R:1,S:6> D 2: DISK<N:2,[dev 00:00](0,0),R:2,S:9> md: THIS: DISK<N:0,hdc1(22,1),R:0,S:6> md: ********************************** md: cannot remove active disk hdc1 from md1 ... Expected Results: Should not generate kernel errors. Additional info:
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