Package: watchdog Version: 5.15-2 Severity: important Tags: upstream Dear Maintainer,
I'm using watchdog daemon on multiple type of hardware and it seems there is a bug on arm64. Command "getconf PAGESIZE" returns 4096 si I sized allocatable-memory options using this value. However the system immediately rebooted because "cannot allocate 6637223936 bytes (errno = 12 = 'Cannot allocate memory')". Well, the problem is with 4096 bytes pages, this value in bytes is absolutely wrong. Log entry when starting the service actually shows that the used pagesize is 65536: "memory: minimum pages = 0 free, 101276 allocatable (65536 byte pages)". So I tried to understand why such thing occurred: The log entry with incorrect pagesize is here: https://sourceforge.net/p/watchdog/code/ci/master/tree/src/watchdog.c#l253 And the variable containing the pagesize here: https://sourceforge.net/p/watchdog/code/ci/master/tree/src/watchdog.c#l26 My understanding is that this is incorrect. While it seems to work on amd64 it does not on arm64, because I suspect arm64 build machine has different settings that my Jetsons systems. I'm pretty sure this is not correct, pagesize should be detected at runtime, not at buildtime. And I actually found a proof for that: https://reviews.llvm.org/file/data/czbtafe5ozyi25sxhbeq/PHID-FILE- qpahm22gtfydywupbps5/file It seems indeed that using EXEC_PAGESIZE is marked as unreliable on non x86 architectures and uses instead a call to sysconf, which is equivalent to the getconf command I used to check the actual pagesize on my Jetson boards. Thanks in advance, Regards, Adam. -- System Information: Debian Release: 10.6 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-12-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages watchdog depends on: ii debconf [debconf-2.0] 1.5.71 ii init-system-helpers 1.56+nmu1 ii libc6 2.28-10 ii lsb-base 10.2019051400 ii udev 241-7~deb10u4 watchdog recommends no packages. watchdog suggests no packages.
