[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

I'd like to perform a reverse bisect to figure out which commit upstream fixes this regression. It would be very helpful to know the last kernel that had this issue and the first kernel that did not. Can you test the following kernels and report back? We are looking for the earliest kernel

[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

I did some more testing with upstream kernel. The upstream kernel similarly has the occasional freeze where the entire desktop stops responding or updating (while the hardware mouse cursor is usually still movable but clicking doesn't do anything), however unlike the Ubuntu 17.04 kernel it always

[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1682402 Title: Running I/O heavy operation (cp) inside terminal in X

[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

I just tested the latest upstream 4.11-rc7 which works fine. I didn't test a previous version of Ubuntu, since I just switched to 17.04 from Fedora 25. ** Tags added: kernel-fixed-upstream -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11

[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

Some additional info: - a short self-test of the SSD has already completed without errors - there was barely any memory usage while the bug occured, so it shouldn't be an out of memory issue - iotop shows always ~5 seconds of 99% I/O usage of the "cp" command at the top with nothing notable

[Kernel-packages] [Bug 1682402] Re: Running I/O heavy operation (cp) inside terminal in X server session will lock up entire system while running it in a TTY works fine

Just to rule out hardware issues: smartctl --all on the SSD shows no sector reallocations, barely any media wearout, no uncorrectable error count and barely any CRC errors (9). I am just running a long self-test and will report back whether it shows any errors. -- You received this bug