September 2018 - openSUSE Kernel - openSUSE Mailing Lists

[opensuse-kernel] kmalloc-2048 memleak in 4.19rc kernels
by Stefan Seyfried 10 Oct '18

10 Oct '18

Hi, I think I'm seeing a continuously rising usage of kmalloc-2048 slabs in /proc/slabinfo and slabtop. Before I rebooted from 4.19rc3 to 4.19rc5, I had about 4.5GB of kmalloc-2048 after about 13d8h uptime. Now, after almost 10 minutes uptime, it has already grown to 4MB: 2166 2166 100% 2.00K 1083 2 4332K kmalloc-2048 How can I debug this? The usage started to increase immediately after boot into an idle XFCE desktop, running a small X11 application (gkrellm system monitor) via SSH on a remote machine After disabling networking in NetworkManager, kmalloc-2048 usage went down (from about ~2500 objects to 2388 active objects right now), now on a stable, lightly fluctuating level. This is a Lenovo Thinkpad T420, Core i5-2520M CPU, 8GB RAM, Intel Centrino Advanced-N 6205 [Taylor Peak] WIFI module, Ethernet unused. Once I know how to find out more details, I'm ready to report this upstream ;-) Thanks, Stefan -- Stefan Seyfried "For a successful technology, reality must take precedence over public relations, for nature cannot be fooled." -- Richard Feynman -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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[opensuse-kernel] Removal of f2fs
by Nikolay Borisov 01 Oct '18

01 Oct '18

Hello everyone, I'm writing this to announce that I intend on removing f2fs being built as part of opensuse-leap and opensuse-tumbleweed kernels. The reasoning behind this can be found at https://bugzilla.opensuse.org/show_bug.cgi?id=1109665. Additionally I'd like to use this email as an opportunity for everyone who might be negatively impacted by this change to voice their concern. If I hear nothing in 2-3 days I shall proceed forward and apply the necessary changes to the kernel config. Regards, Nikolay -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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[opensuse-kernel] [Tumbleweed] Samsung 860 evo NONCQ ???
by pf 25 Sep '18

25 Sep '18

Hi, got some 4T SSDs few days ago and had trouble to get them to work. For now they're NO-NCQ'd in kernel start parameters, but as I've seen in actual kernel source 4.18.7 they should do with full NCQ because the old entry "Samsung SSD 8*" isn't listed any more in libata !? Bug in kernel or controller or SSD or feature ? best regards, Peter P.S. with NCQ=32 logging is almost breakin down the system with tons of entries as: Sep 14 16:26:30 PefWS kernel: ata5.00: exception Emask 0x10 SAct 0xfffffffb SErr 0x0 action 0x6 frozen Sep 14 16:26:30 PefWS kernel: ata5.00: irq_stat 0x08000000, interface fatal error Sep 14 16:26:30 PefWS kernel: ata5.00: failed command: WRITE FPDMA QUEUED Sep 14 16:26:30 PefWS kernel: ata5.00: cmd 61/40:00:00:13:d9/05:00:01:00:00/40 tag 0 ncq dma 688128 out res 40/00:20:00:80:d8/00:00:01:00:00/40 Emask 0x10 (ATA bus error) Sep 14 16:26:30 PefWS kernel: ata5.00: status: { DRDY } Sep 14 16:26:30 PefWS kernel: ata5.00: failed command: WRITE FPDMA QUEUED Sep 14 16:26:30 PefWS kernel: ata5.00: cmd 61/40:08:40:18:d9/05:00:01:00:00/40 tag 1 ncq dma 688128 out res 40/00:20:00:80:d8/00:00:01:00:00/40 Emask 0x10 (ATA bus error) Sep 14 16:26:30 PefWS kernel: ata5.00: status: { DRDY } Sep 14 16:26:30 PefWS kernel: ata5.00: failed command: WRITE FPDMA QUEUED -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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