After a sequence of mkfs.*, mounts and umounts, finally mount crashed on a newly created reiserfs-3.5 (Segmentation fault). Here is a part of /var/log/messages: Oct 15 21:33:16 arrakis rpm: xfsprogs-0:2.0.1-alt0.1cvs installed Oct 15 21:34:55 arrakis kernel: SGI XFS with ACLs, DMAPI, realtime, quota, no debug enabled Oct 15 21:34:55 arrakis kernel: XFS mounting filesystem sd(8,28) Oct 15 21:38:26 arrakis rpm: jfsprogs-0:1.0.16-alt1 installed Oct 15 21:39:12 arrakis kernel: FAT: bogus logical sector size 0 Oct 15 21:39:12 arrakis kernel: VFS: Can\'t find a valid FAT filesystem on dev 08:1c. Oct 15 21:39:28 arrakis kernel: JFS development version: $Name: v1_0_20 $ Oct 15 21:41:18 arrakis rpm: mount-0:2.11r-alt5 installed Oct 15 21:41:52 arrakis rpm: mount-0:2.11h-alt2 removed Oct 15 21:47:19 arrakis kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000114 Oct 15 21:47:19 arrakis kernel: printing eip: Oct 15 21:47:19 arrakis kernel: 82e09990 Oct 15 21:47:19 arrakis kernel: *pde = 00000000 Oct 15 21:47:19 arrakis kernel: Oops: 0000 2.4.19-alt0.2-up #1 Mon Aug 19 17:26:07 MSD 2002 Oct 15 21:47:19 arrakis kernel: CPU: 0 Oct 15 21:47:19 arrakis kernel: EIP: 0010:[reiserfs:journal_begin_R2gig_22aa5f4d+-151078484/872] Not tainted Oct 15 21:47:19 arrakis kernel: EIP: 0010:[<82e09990>] Not tainted Oct 15 21:47:19 arrakis kernel: EFLAGS: 00010292 Oct 15 21:47:19 arrakis kernel: eax: 00000000 ebx: 00000001 ecx: 00000000 edx: ffff0000 Oct 15 21:47:19 arrakis kernel: esi: 862e7640 edi: 82e1d960 ebp: 00000000 esp: 83ca3d38 Oct 15 21:47:19 arrakis kernel: ds: 0018 es: 0018 ss: 0018 Oct 15 21:47:19 arrakis kernel: Process mount (pid: 12158, stackpage=83ca3000) Oct 15 21:47:19 arrakis kernel: Stack: 86a61860 810d31a0 80139655 00000001 86a61860 84cc3000 00000000 00000000 Oct 15 21:47:19 arrakis kernel: 86a61860 810d31a0 86a61860 00000000 80137c6d 810d31a0 00000000 810d31a0 Oct 15 21:47:19 arrakis kernel: 00000203 862e76e8 80127ae9 8021fa6c 8102c01c 8021faa4 00000203 ffffffff Oct 15 21:47:19 arrakis kernel: Call Trace: [try_to_free_buffers+181/264] [discard_bh_page+93/116] [__remove_inode_page+149/156] [reiserfs:journal_begin_R2gig_22aa5f4d+-150996612/872] [reiserfs:journal_begin_R2gig_22aa5f4d+-151114718/872] Oct 15 21:47:19 arrakis kernel: Call Trace: [<80139655>] [<80137c6d>] [<80127ae9>] [<82e1d960>] [<82e00c06>] Oct 15 21:47:19 arrakis kernel: [reiserfs:journal_begin_R2gig_22aa5f4d+-151114788/872] [iput+247/472] [truncate_inode_pages+87/100] [reiserfs:journal_begin_R2gig_22aa5f4d+-151079800/872] [reiserfs:journal_begin_R2gig_22aa5f4d+-151104557/872] [reiserfs:journal_begin_R2gig_22aa5f4d+-150996536/872] Oct 15 21:47:19 arrakis kernel: [<82e00bc0>] [<80148ccb>] [<80127e17>] [<82e0946c>] [<82e033b7>] [<82e1d9ac>] Oct 15 21:47:19 arrakis kernel: [reiserfs:journal_begin_R2gig_22aa5f4d+-151116495/872] [get_sb_bdev+534/648] [reiserfs:journal_begin_R2gig_22aa5f4d+-150996536/872] [do_kern_mount+88/264] [reiserfs:journal_begin_R2gig_22aa5f4d+-150996536/872] [real_lookup+79/180] Oct 15 21:47:19 arrakis kernel: [<82e00515>] [<8013aaa6>] [<82e1d9ac>] [<8013ac70>] [<82e1d9ac>] [<8013e99b>] Oct 15 21:47:19 arrakis kernel: [do_add_mount+113/584] [do_page_fault+0/1356] [do_mount+335/364] [copy_mount_options+75/156] [sys_mount+124/184] [system_call+51/64] Oct 15 21:47:19 arrakis kernel: [<8014ae75>] [<80114948>] [<8014b237>] [<8014b097>] [<8014b5cc>] [<80108733>] Oct 15 21:47:19 arrakis kernel: Modules: [(jfs:<82e00060>:<82e1e3c4>)] Oct 15 21:47:19 arrakis kernel: Code: 8b 80 14 01 00 00 8b a8 a0 01 00 00 c7 44 24 34 00 00 00 00 --- Here is the command sequence that lead to the crash : parted /dev/sdb (creating /dev/sdb12: 1Gb) mkfs.ext3 /dev/sdb12 mount /dev/sdb12 /mnt/disk mount cp -a /var/mail/ivan /mnt/disk/ivan umount /mnt/disk mkfs.vfat /dev/sdb12 mount /dev/sdb12 /mnt/disk; mount cp -a /var/mail/ivan /mnt/disk/ivan umount /mnt/disk mount /dev/sdb12 /mnt/disk -o umask=000; mount umount /mnt/disk mkfs.xfs /dev/sdb12 mkfs.xfs -f /dev/sdb12 mount /dev/sdb12 /mnt/disk; mount cp -a /var/mail/ivan /mnt/disk/ivan umount /mnt/disk mkfs.jfs /dev/sdb12 mount /dev/sdb12 /mnt/disk; mount mount /dev/sdb12 /mnt/disk -t jfs; mount cp -a /var/mail/ivan /mnt/disk/ivan umount /mnt/disk mount /dev/sdb12 /mnt/disk; mount umount /mnt/disk mkreiserfs-3.5.x /dev/sdb12 mount /dev/sdb12 /mnt/disk; mount THE CRASH mount /dev/sdb12 /mnt/disk -t reiserfs; mount reports it is already mounted or busy umount /mnt/disk umount /dev/sdb12 reports they are not mounted mount /dev/sdb12 /mnt/disk -t reiserfs; mount already mounted or busy mount /dev/sdb12 /mnt/disk; mount hangs --- kernel24-up-2.4.19-alt0.2 # lsmod Module Size Used by Not tainted jfs 123844 3 (autoclean) xfs 466404 0 (autoclean) xfs_dmapi 29856 0 (autoclean) [xfs] xfs_support 7794 0 (autoclean) [xfs xfs_dmapi] nls_koi8-r 3804 0 (autoclean) nls_cp437 4316 0 (autoclean) vfat 9460 0 (autoclean) fat 29656 0 (autoclean) [vfat] ext3 72232 0 (autoclean) jbd 36608 0 (autoclean) [ext3] ppp_deflate 40064 0 (autoclean) bsd_comp 3960 0 (autoclean) ppp_async 6240 0 (autoclean) ppp_generic 19224 0 (autoclean) [ppp_deflate bsd_comp ppp_async] slhc 4736 0 (autoclean) [ppp_generic] serial 54724 0 (autoclean) isa-pnp 27520 0 (autoclean) [serial] parport_pc 24840 1 (autoclean) lp 6208 0 (autoclean) parport 22944 1 (autoclean) [parport_pc lp] autofs4 8060 1 (autoclean) ne2k-pci 4960 1 (autoclean) 8390 6240 0 (autoclean) [ne2k-pci] dummy1 1064 0 (autoclean) (unused) dummy0 1064 1 (autoclean) ipt_REJECT 2904 1 (autoclean) ipt_LOG 3480 2 (autoclean) ipt_multiport 792 3 (autoclean) iptable_filter 1732 1 (autoclean) ip_tables 10936 4 [ipt_REJECT ipt_LOG ipt_multiport iptable_filter] ext2 43112 1 (autoclean) mbcache 3248 2 (autoclean) [ext3 ext2] agpgart 31648 0 (unused) eeprom 3312 0 (unused) w83781d 18424 0 (unused) i2c-proc 6160 0 [eeprom w83781d] i2c-matroxfb 2996 0 (unused) i2c-algo-bit 7208 3 [i2c-matroxfb] i2c-isa 1128 0 (unused) i2c-piix4 3820 0 (unused) i2c-core 15076 0 [eeprom w83781d i2c-proc i2c-algo-bit i2c-isa i2c-piix4] matroxfb_base 17892 63 [i2c-matroxfb] matroxfb_DAC1064 7672 0 [matroxfb_base] g450_pll 3600 0 [matroxfb_DAC1064] matroxfb_Ti3026 4948 0 [matroxfb_base] matroxfb_accel 9352 0 [matroxfb_base matroxfb_DAC1064 matroxfb_Ti3026] fbcon-cfb4 2216 0 [matroxfb_accel] fbcon-cfb32 3784 0 [matroxfb_accel] fbcon-cfb8 3464 0 [matroxfb_accel] matroxfb_misc 8112 0 [i2c-matroxfb matroxfb_base matroxfb_DAC1064 g450_pll matroxfb_Ti3026 matroxfb_accel] rtc 6008 0 (autoclean) reiserfs 171200 6 aic7xxx 115992 16 sd_mod 11700 32 scsi_mod 91108 2 [aic7xxx sd_mod]
The system shutdown after the described session was hanging on the first umount.
Please check it on kernel-2.4.20-alt0.8. I cannot reproduse it on latest kernels.
