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Bug 754774 - sys-kernel/gentoo-sources-5.9 Kernel crashes using RDMA/NFS
Summary: sys-kernel/gentoo-sources-5.9 Kernel crashes using RDMA/NFS
Status: CONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: AMD64 Linux
: Normal major (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-11-15 22:42 UTC by thezombiehunter
Modified: 2021-02-13 19:27 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
Kernel config (config,146.84 KB, text/plain)
2020-11-15 22:42 UTC, thezombiehunter
Details
lshw (lshw.txt,40.86 KB, text/plain)
2020-11-15 22:42 UTC, thezombiehunter
Details
Kernel log (kern.log,24.55 KB, text/plain)
2020-11-15 22:42 UTC, thezombiehunter
Details

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Description thezombiehunter 2020-11-15 22:42:11 UTC
Created attachment 671563 [details]
Kernel config

I'm not sure if this is due to nvidia's known 5.9 issues or if this is due to changes within 5.9 on how it handles I/O. Kernel 5.8 does not have this issue.

When using RDMA over FDR IB with NFSv4 on 5.9 the kernel will hard lock up / crash within a second or two of the transfer starting.

Kernel bug: https://bugzilla.kernel.org/show_bug.cgi?id=210097

I only have two computers and am stuck with nvidia, so can't test without the card.
Comment 1 thezombiehunter 2020-11-15 22:42:23 UTC
Created attachment 671566 [details]
lshw
Comment 2 thezombiehunter 2020-11-15 22:42:34 UTC
Created attachment 671569 [details]
Kernel log
Comment 3 thezombiehunter 2020-11-27 17:17:31 UTC
As of 5.9.11 the kernel is no longer hard crashing and files successfully transfer.

However, whatever is transferring the files becomes unresponsive until the transfer is finished which did not happen in kernel 5.8.
Comment 4 Alice Ferrazzi Gentoo Infrastructure gentoo-dev 2020-12-04 02:11:58 UTC
thanks for the report

fixed upstream
Comment 5 Mike Pagano gentoo-dev 2021-02-13 19:27:47 UTC
Is this still an issue with the latest 5.10.X kernel, which is 5.10.16 as of this writing ?