Bug 2224859
| Summary: | kernel-6.4.4-200 loses network adapter | ||||||||||||
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| Product: | [Fedora] Fedora | Reporter: | Michael Riss <Michael.Riss> | ||||||||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||||||||
| Status: | CLOSED COMPLETED | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||||||
| Severity: | urgent | Docs Contact: | |||||||||||
| Priority: | unspecified | ||||||||||||
| Version: | 38 | CC: | acaringi, adscvr, airlied, alciregi, bskeggs, hdegoede, hpa, jarodwilson, josef, kernel-maint, lgoncalv, linville, masami256, mchehab, paul.0000.black, ptalbert, steved, toby | ||||||||||
| Target Milestone: | --- | ||||||||||||
| Target Release: | --- | ||||||||||||
| Hardware: | x86_64 | ||||||||||||
| OS: | Linux | ||||||||||||
| Whiteboard: | |||||||||||||
| Fixed In Version: | Doc Type: | --- | |||||||||||
| Doc Text: | Story Points: | --- | |||||||||||
| Clone Of: | Environment: | ||||||||||||
| Last Closed: | 2023-08-04 00:39:59 UTC | Type: | --- | ||||||||||
| Regression: | --- | Mount Type: | --- | ||||||||||
| Documentation: | --- | CRM: | |||||||||||
| Verified Versions: | Category: | --- | |||||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||||
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Description
Michael Riss
2023-07-23 16:36:05 UTC
Created attachment 1977146 [details]
dmesg output of the first NIC loss
Created attachment 1977147 [details]
dmesg output of the second NIC loss
Created attachment 1977148 [details]
lspci topology
Created attachment 1977149 [details]
lspci details
I've had the same (twice now). Looks like a similar ethernet device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller Yes, same adapter. I now have the network loss about every hour, but irregular. Sometimes network is gone directly after system start, sometimes the network works for 2-3h before the loss occurs. I encountered the same issue and my initial attempt to identify a bug failed to find this case. I believe 2225388 (https://bugzilla.redhat.com/show_bug.cgi?id=2225388) is the same issue. *** Bug 2225388 has been marked as a duplicate of this bug. *** The problem unfortunately still persists with kernel-6.4.6-200.fc38.x86_64. I may have good news: I did some searching on the linux kernel bugzilla and this bug looks like what we have here: https://bugzilla.kernel.org/show_bug.cgi?id=217596 TL;DL: The active state power management of PCIe devices got an update with kernel 6.4 and this seems to negatively affect the r8169 driver. They managed to fix the problem by reverting the changes in kernel version 6.4.7. Fortunately there is already a Fedora test kernel for kernel 6.4.7. I tested it this afternoon and haven't seen the problem anymore. Of course it's possible that the problem still shows up after 7-8h, but I want to share it with the ones also suffering from this in the hope that it might give them some relief as well. I made the kernel upgrade to the testing kernel with: dnf upgrade --enablerepo updates-testing kernel kernel-devel kernel-modules-extra Good luck! The network adapter remains stable on my machine with the 6.4.7 kernel also the third day in a row. I think this is the fix. Seeing that kernel 6.4.7 has reached the regular updates I'm closing this bug as resolved. I switched from running kernel 6.3.12 to 6.4.7 on Fri Aug 4 (I was off grid for 5 days and didn't want to switch immediately prior) and have not had a single issue during the past 57 hours, so I concur with Michael Riss that the bug is resolved. |