https://bugs.kde.org/show_bug.cgi?id=375445
Bug ID: 375445 Summary: KMail2 hangs with 100% CPU usage when trying to preview or read large emails from IMAP server Product: kmail2 Version: 5.4.0 Platform: openSUSE RPMs OS: Linux Status: UNCONFIRMED Severity: major Priority: NOR Component: general Assignee: kdepim-bugs@kde.org Reporter: rodney.ba...@iinet.net.au Target Milestone: --- KMail2 hangs when trying to read large text-based emails (~22MB Log files) from a Dovecot IMAP server. The emails are never shown in the preview window and KMail2 becomes unresponsive. CPU Usage for the KMail2 process goes to 100% and stays there. Memory usage gradually increases as the email is presumably parsed but the preview is never displayed, even after CPU usage eventually returns to normal and KMail again becomes responsive (takes >5 minutes). At the same time, none of the akonadi processes show unusual CPU or memory usage (if anything, perhaps unusually low, as if it is not actually doing a whole lot). By comparison, Mozilla Thunderbird can read the same emails from the same IMAP server and account without issues. The initial preview is shown immediately as the rest of the message is parsed (which does take some time, but Thunderbird remains responsive). -- You are receiving this mail because: You are the assignee for the bug.