f30f11f878
If the root file system is composed from multiple devices, wait for devices to be ready before running zpool and dumpon rc scripts. An example of this is if the bulk of the root file system exists on a fast device (e.g. NVMe) but the /var directory comes from a ZFS dataset on a slower device (e.g. SATA). In this case, it is possible that the zpool import may run before the slower device has finished being probed, leaving the system in an intermediate state. Fix is to add root_hold_wait to the zpool and dumpon (which has a similar issue) rc scripts. PR: 242189 Reported by: osidorkin@gmail.com Reviewed by: allanjude MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D29101
80 lines
1.3 KiB
Bash
Executable File
80 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: dumpon
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# BEFORE: disks
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# KEYWORD: nojail
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. /etc/rc.subr
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name="dumpon"
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desc="Dump kernel corefiles from swap to disk"
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start_cmd="dumpon_start"
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stop_cmd="dumpon_stop"
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dumpon_try()
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{
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local flags
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flags=${dumpon_flags}
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if [ -n "${dumppubkey}" ]; then
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warn "The dumppubkey variable is deprecated. Use dumpon_flags."
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flags="${flags} -k ${dumppubkey}"
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fi
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/sbin/dumpon ${flags} "${1}"
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if [ $? -eq 0 ]; then
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# Make a symlink in devfs for savecore
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ln -fs "${1}" /dev/dumpdev
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return 0
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fi
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warn "unable to specify $1 as a dump device"
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return 1
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}
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dumpon_start()
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{
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# Enable dumpdev so that savecore can see it. Enable it
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# early so a crash early in the boot process can be caught.
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#
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case ${dumpdev} in
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[Nn][Oo] | '')
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;;
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[Aa][Uu][Tt][Oo])
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root_hold_wait
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dev=$(/bin/kenv -q dumpdev)
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if [ -n "${dev}" ] ; then
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dumpon_try "${dev}"
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return $?
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fi
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while read dev mp type more ; do
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[ "${type}" = "swap" ] || continue
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[ -c "${dev}" ] || continue
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dumpon_try "${dev}" 2>/dev/null && return 0
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done </etc/fstab
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echo "No suitable dump device was found." 1>&2
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return 1
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;;
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*)
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root_hold_wait
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dumpon_try "${dumpdev}"
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;;
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esac
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}
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dumpon_stop()
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{
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case ${dumpdev} in
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[Nn][Oo] | '')
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;;
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*)
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rm -f /dev/dumpdev
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/sbin/dumpon -v off
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;;
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esac
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}
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load_rc_config $name
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run_rc_command "$1"
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