From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0rc3) Gecko/20020523 Description of problem: We have a PII (Klamath) 266MHz machine with a PD440FX motherboard. Using RedHat 7.2 (2.4.9-31 kernel) it works fine. Indeed, using my standard build mozilla lots of times test it is very stable. On upgrading to RedHat 7.3 (2.4.18-4 kernel) it usually crashes in the install (hard disk light stays on, network stack is pingable, but can't log in), or later when untarring a large file on the hard disk. This hard disk is a Quantum Fireball ST6.4A. RedHat 7.2 doesn't switch on DMA automatically, but 7.3 does. Switching on DMA on 7.2 gives messages like: May 29 10:26:05 xpc6 kernel: hda: timeout waiting for DMA May 29 10:26:06 xpc6 kernel: ide_dmaproc: chipset supported ide_dma_timeout func only: 14 May 29 10:26:06 xpc6 kernel: blk: queue c0352660, I/O limit 4095Mb (mask 0xffffffff) May 29 10:26:06 xpc6 kernel: hda: status error: status=0x58 { DriveReady SeekComplete DataRequest } May 29 10:26:06 xpc6 kernel: hda: drive not ready for command However the machine doesn't crash. Should 7.3 be disabling the DMA for this setup. Why does this crash on 7.3 and not on 7.2? Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Install redhat 7.3 2. Untar mozilla tarball 3. Crashes Additional info: 7.2 output: [root@xpc6 ide]# cat /proc/ide/piix Intel PIIX3 Chipset. --------------- Primary Channel ---------------- Secondary Channel ------------- enabled enabled --------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------DMA enabled: no no yes no UDMA enabled: no no no no UDMA enabled: X X X X UDMA DMA PIO
More information: we have an identical system (same type of hard disk and motherboard). The install fails in exactly the same way. This looks like the kernel doesn't support this motherboard (or disk).
Installing with ide=nodma on the syslinux prompt will work Now to find out why the kernel decides to enable dma...
Confirmed. Using ide=nodma the system works fine (and installs).
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