Red Hat Bugzilla – Bug 449957
mkdumprd ignores /etc/sysconfig/mkinitrd
Last modified: 2008-06-04 10:51:45 EDT
Description of problem: While using qemu-kvm to run a -snapshot copy of my system I need to provide custom configuration for /sbin/mkinitrd. This configuration is ignored by /sbin/mkdumprd and so the crash test in qemu-kvm fails as it has no device to dump the data to. My native system uses ahci.ko while qemu-kvm needs ata_piix.ko. Version-Release number of selected component (if applicable): kernel-2.6.25.3-18.fc9.x86_64 kvm-65-7.fc9.x86_64 kexec-tools-1.102pre-8.fc9.x86_64 mkinitrd-6.0.52-2.fc9.x86_64 How reproducible: Always. Steps to Reproduce: 1. echo 'MODULES="$MODULES ata_piix"' >>/etc/sysconfig/mkinitrd 2. Install new kernel or run mkinitrd -f /boot/initrd-2.6.25.3-18.fc9.x86_64.img 2.6.25.3-18.fc9.x86_64 3. Run qemu-kvm: sync;hdparm -f /dev/sda{,1,2,3} /dev/mapper/luks-sda{2,3};nice qemu-kvm -hda /dev/sda -snapshot -net nic -net tap -serial stdio -m 384 -smp 1 4. Run inside qemu-kvm: service kdump start 5. Run inside qemu-kvm: echo c >/proc/sysrq-trigger Actual results: Freeing unused kernel memory: 356k freed Write protecting the kernel read-only data: 1120k Mounting proc filesystem Mounting sysfs filesystem Creating /dev Creating initial device nodes Loading scsi_mod.ko module SCSI subsystem initialized Loading sd_mod.ko module Driver 'sd' needs updating - please use bus_type methods Loading libata.ko module Loading ahci.ko module Loading jbd.ko module Loading mbcache.ko module Loading ext3.ko module Loading dm-mod.ko module input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 device-mapper: uevent: version 1.0.3 device-mapper: ioctl: 4.13.0-ioctl (2007-10-18) initialised: dm-devel@redhat.com Loading dm-mirror.ko module Loading dm-zero.ko module Loading dm-snapshot.ko module Creating Block Devices Creating block device ram0 Creating block device ram1 Creating block device ram10 Creating block device ram11 Creating block device ram12 Creating block device ram13 Creating block device ram14 Creating block device ram15 Creating block device ram2 Creating block device ram3 Creating block device ram4 Creating block device ram5 Creating block device ram6 Creating block device ram7 Creating block device ram8 Creating block device ram9 hwclock: can't open '/dev/misc/rtc': No such file or directory Saving to partition /dev/sda2 dd: writing '/dev/sda2': No space left on device 120633+0 records in 120632+0 records out Attempting to enter user-space to capture vmcore Expected results: Freeing unused kernel memory: 356k freed Write protecting the kernel read-only data: 1120k Mounting proc filesystem Mounting sysfs filesystem Creating /dev Creating initial device nodes Loading scsi_mod.ko module SCSI subsystem initialized Loading sd_mod.ko module Driver 'sd' needs updating - please use bus_type methods Loading libata.ko module Loading ahci.ko module Loading jbd.ko module Loading mbcache.ko module input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 Loading ext3.ko module Loading dm-mod.ko module device-mapper: uevent: version 1.0.3 device-mapper: ioctl: 4.13.0-ioctl (2007-10-18) initialised: dm-devel@redhat.com Loading dm-mirror.ko module Loading dm-zero.ko module Loading dm-snapshot.ko module Loading ata_piix.ko module scsi0 : ata_piix scsi1 : ata_piix ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14 ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15 ata1.00: ATA-7: QEMU HARDDISK, 0.9.1, max UDMA/100 ata1.00: 195371568 sectors, multi 16: LBA48 ata1.00: configured for MWDMA2 ata2.00: ATAPI: QEMU DVD-ROM, 0.9.1, max UDMA/100 ata2.00: configured for MWDMA2 scsi 0:0:0:0: Direct-Access ATA QEMU HARDDISK 0.9. PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 195371568 512-byte hardware sectors (100030 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 195371568 512-byte hardware sectors (100030 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sd 0:0:0:0: [sda] Attached SCSI disk scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 0.9. PQ: 0 ANSI: 5 Creating Block Devices Creating block device ram0 Creating block device ram1 Creating block device ram10 Creating block device ram11 Creating block device ram12 Creating block device ram13 Creating block device ram14 Creating block device ram15 Creating block device ram2 Creating block device ram3 Creating block device ram4 Creating block device ram5 Creating block device ram6 Creating block device ram7 Creating block device ram8 Creating block device ram9 Creating block device sda hwclock: can't open '/dev/misc/rtc': No such file or directory Saving to partition /dev/sda2 534387+1 records in 534387+1 records out Saving core complete md: stopping all md devices. Restarting system. machine restart Additional info: As /sbin/mkdumprd is derived from /sbin/mkinitrd the removal of the sysconfig load may be intentional, unaware if some mkinitrd configuration may break mkdumprd.
Created attachment 308342 [details] /sbin/mkdumprd fix.
You are correct in your initial thought - the removal of the sysconfig load in mkdumprd was intentional. we don't always want to mirror the mkinitrd configuration in kdump. There is a separate directive in /etc/kdump.conf to do what you need. Please see the extra_modules directive. That should do what you need it to. Sorry for the confusion. Please reopen this if the extra_modules directive doesn't do what you need it to do.