[systemd-bugs] [Bug 61084] New: RFE: allow to configure watchdog device and support multiple watchdog devices

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61084

          Priority: medium
            Bug ID: 61084
          Assignee: systemd-bugs at lists.freedesktop.org
           Summary: RFE: allow to configure watchdog device and support
                    multiple watchdog devices
        QA Contact: systemd-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: enrico.scholz at informatik.tu-chemnitz.de
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: general
           Product: systemd

With recent kernels, watchdog is not a simple misc device anymore but there can
exist multiple instances. This means that a system can have /dev/watchdog0 (-->
e.g. CPU internal watchdog timer) and /dev/watchdog1 (external watchdog
circuit) where watchdog1 is more reliable (e.g. because it generates reset
signals for external devices too).

/dev/watchdog still exists in this setup but equals to /dev/watchdog0 (misc
device is created for the first wd only).

Hence, please allow to configure the used watchdog device in a first step. In a
second step, multiple watchdogs with corresponding 'Wants =
dev-watchdogX.device' entries should be supported to cope with changed device
names due to random/parallel module loading.

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