[Kernel-packages] [Bug 1939996] [NEW] kernel BUG at mm/zswap.c:1275

2021-08-15 Thread Nicholas Guriev
Public bug reported: I have just found the following lines in dmesg. I do not know what caused the bug. But mentioned PIDs are now labeled as zombie. Apps running by these process have hang. [37300.978014] [ cut here ] [37300.978020] kernel BUG at mm/zswap.c:1275!

[Kernel-packages] [Bug 1939996] Re: kernel BUG at mm/zswap.c:1275

2021-08-16 Thread Nicholas Guriev
** Attachment added: "eatmem.c" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939996/+attachment/5518108/+files/eatmem.c -- 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/1939996

[Kernel-packages] [Bug 1939996] Re: kernel BUG at mm/zswap.c:1275

2021-08-16 Thread Nicholas Guriev
I can reproduce the bug on -22 and -25 kernels. Here are almost full dmesg logs. You can see SSD errors where swap is placed. This issue may be related to them somehow. To exclude hardware element of errors, I will try other more recent laptop or VirtualBox. Steps: 1. sudo mount -t tmpfs -o

[Kernel-packages] [Bug 1939996] Re: kernel BUG at mm/zswap.c:1275

2021-08-16 Thread Nicholas Guriev
** Attachment added: "dmesg_0859.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939996/+attachment/5518107/+files/dmesg_0859.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.