I wish I had a way of encapsulating the problem and to find the root cause of the runaway memory usage. So, as I think about this, the problem has a deeper significance. There was a very sensible comment, I read, by Linus Torvalds, saying that whatever happens in user-space should not cause the OS to have a problem and that such cases are problems for the kernel developers. I have other machines that use Thunderbird for email which run just fine, so I'm not directly concerned about Thunderbird, itself. However, it should be impossible for any code in user-space to kill the OS. I'm convinced that there is something wrong with my Thunderbird configuration that is causing Thunderbird to run amok. To add insult to injury when I push the power button to really shut things down Thunderbird asks if I want to report the problem, but promptly exits. I suspect there is some evil child thread/fork that is off on it's own. I have also noticed for several years that when I shut down Linux, the system complains that there is a Thunderbird process running, though I have already shut down Thunderbird. I don't need an integrated tool like Outlook, just an email client. Thunderbird is OK but clearly has suffered from feature creep and being attached to the Firefox boat anchor. Personally, I don't like using a browser as an email client. Oh, the hegemony of Google? That boat left ages ago.īy contrast, there are few email clients available. Chrome is the obvious winner, is open sourced, and even Microsoft is using it. Firefox's share of browsers is on the decline and isn't likely to recover. I know that Mozilla wants to give up Thunderbird because they feel they can have more impact with Firefox. I have tried running it in a terminal in safe-mode but it has the same behavior. It should get killed by the OS at some point before the system dies, surely? I'm actually surprised that it can do this from user space. If I'm not quick and kill it, then it requires a hard reboot. When Thunderbird is started it consumes ALL memory: real and virtual. At some update point things have gone badly. ![]() I'm using Thunderbird 68.10.0 on Mint 19.3 with Mate 1.22 and Kernel 5.4.
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