A brand new system setup with RH 7.3 is still Oopsing after every X hours. The problem started after about 1 week without errors. Sometimes everything is locked, sometimes still messages are written to /var/log/messages. Sometimes other processes keep running (can still ping the machine) I upgraded the kernel to 2.4.18-19.7.x, changed the memory, but still got problems. When I read all sort of newsgroups, I read it can be almost everything. Is 'downgrading' to ext2 an option (or even a solution)? Problems with swap: Swap: 522072K av, 0K used, 522072K free (strange not 1 bit used) --> How can I put something in the swap?, so I can rule this out Hardware: I read something about memory caching to write to the HD --> It looks to me the crashed occur when the CPU/HD is trashed (they come in both) How can I stress-test these systems. HD: The harddisk is brandnew, so it would be strange to me that after 1 week it's already being bad. --> how can I rule this out? IDE-bus? Got a strang sentence at startup about the speed.... System: AMD Athlon 1150 (1 CPU), with Maxtor HD At startup I see this, take is the next sentence OK? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller on PCI bus 00 dev 39 VP_IDE: chipset revision 6 VP_IDE: not 100%% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1 ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:pio, hdd:pio hda: Maxtor 6E030L0, ATA DISK drive At panic-time in /var/log/messages Unable to handle kernel NULL pointer dereference at virtual address 00000015 printing eip: c0117289 *pde = 00000000 Oops: 0002 autofs tulip 8139too mii ipchains ide-cd cdrom usb-uhci usbcore ext3 jbd CPU: 0 EIP: 0010:[<c0117289>] Not tainted EFLAGS: 00010202 EIP is at copy_files [kernel] 0x169 (2.4.18-19.7.x) eax: 00000001 ebx: cd37ac84 ecx: c7bcf0a0 edx: 00000338 esi: cd37ab4c edi: cac7decc ebp: cac7de40 esp: ca5fdf44 ds: 0018 es: 0018 ss: 0018 Process httpd (pid: 650, stackpage=ca5fd000) Stack: 0000001b 00000003 00000000 00000360 c7bcf0a0 cd37aac0 00000000 00000011 00000000 c29fa000 c011763e 00000011 c29fa000 fffffff4 c1aa4480 ca5fdf60 00000008 0003aa21 00000001 ca5fc000 ca5fdfa8 bfffb7d8 ca5fc000 40013020 Call Trace: [<c011763e>] do_fork [kernel] 0x2ce (0xca5fdf6c)) [<c0107515>] sys_fork [kernel] 0x15 (0xca5fdfac)) [<c010893b>] system_call [kernel] 0x33 (0xca5fdfc0)) And now and then I see this messages (sometimes without any effects) EXT3-fs error (device ide0(3,2)): ext3_free_blocks: Freeing block in system zone - block = 2 fsck: contains a file system with errors, check forced. <2>EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3471323520, count = 1 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3275923520, count = 1 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3326435648, count = 1 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3422640768, count = 1 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3479942536, count = 1 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3251122320, count = 1 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing blocks not in datazone - block = 3251122320, count = 1 Kernel panic: EXT3-fs panic (device ide0(3,5)): load_block_bitmap: block_group >= groups_count - block_group = 131071, groups_count = 47 EXT3-fs error (device ide0(3,5)): ext3_free_blocks: Freeing block in system zone - block = 2 Can someone push me in a direction please? Pascal _______________________________________________ Ext3-users@redhat.com https://listman.redhat.com/mailman/listinfo/ext3-users