Your message dated Thu, 20 Feb 2025 12:15:02 +0100 (CET) with message-id <[email protected]> and subject line Closing this bug (BTS maintenance for src:linux bugs) has caused the Debian Bug report #907060, regarding linux: ratelimiting hides warnings about uninitialized crng usage to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 907060: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=907060 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Source: linux-image-4.17.0-3-amd64 Version: 4.17.17-1 Severity: normal A minute or so after booting this kernel within a kvm guest that has some userspace crypto working in it, i see a message about ratelimited reports in the kernel ring buffer, but i never get any of the full messages: root@test:~# head -v /proc/sys/kernel/printk* ==> /proc/sys/kernel/printk <== 7 4 1 7 ==> /proc/sys/kernel/printk_delay <== 0 ==> /proc/sys/kernel/printk_devkmsg <== ratelimit ==> /proc/sys/kernel/printk_ratelimit <== 10 ==> /proc/sys/kernel/printk_ratelimit_burst <== 10 root@test:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-4.17.0-3-amd64 root=UUID=44659876-4a68-4a3a-b3fa-0403eeb0c6ca ro console=ttyS0,115200n8 root@test:~# dmesg | tail -n 3 [ 2.880287] [drm] Initialized bochs-drm 1.0.0 20130925 for 0000:00:02.0 on minor 0 [ 107.680402] random: crng init done [ 107.681132] random: 7 urandom warning(s) missed due to ratelimiting root@test:~# given the timing, i presume the urandom warnings have to do with some process accessing /dev/urandom before the crng is initialized, but none of them is displayed (not even one, let alone the 10 i'd expect from the sysctl values). This is a problem because it makes it harder to figure out which processes are actually doing the dangerous urandom reads. This system doesn't have plymouth or anything graphical installed (it's using a virtualized serial console) so i don't think #897572 is related. --dkg -- System Information: Debian Release: sid Architecture: amd64 (x86_64) Kernel: Linux 4.17.0-3-amd64 (SMP w/1 CPU core) 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 /bin/dash Init: systemd (via /run/systemd/system)
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--- Begin Message ---Hi This bug was filed for a very old kernel or the bug is old itself without resolution. If you can reproduce it with - the current version in unstable/testing - the latest kernel from backports please reopen the bug, see https://www.debian.org/Bugs/server-control for details. Regards, Salvatore
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