| Summary: | sys-kernel/gentoo-sources-{4.9.26, 4.10.14, 4.11.0} kernel panic with NULL pointer dereference | ||
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| Product: | Gentoo Linux | Reporter: | holbugs |
| Component: | Current packages | Assignee: | Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | jstein |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | AMD64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
Panic message
Kernel .config file Kernel boot messages Output from lspci -k Output from emerge -info (note taken under 4.10.15) |
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Created attachment 472034 [details]
Kernel .config file
Created attachment 472036 [details]
Kernel boot messages
Created attachment 472038 [details]
Output from lspci -k
Created attachment 472040 [details]
Output from emerge -info (note taken under 4.10.15)
Reproduced this BUG/panic under 4.9.33-gentoo WORKAROUND: worked around this panic with a rearrangement of the PCI-E cards. The old config was - SAS controller with disk array on CPU0 PCI-E, 10G Ethernet card on CPU1 PCI-E. The config now is - SAS controller with disk array on CPU0 PCI-E, 10G Ethernet card on CPU0 PCI-E. Moving the Ethernet card onto the same CPU as the disk array avoids the panic. From your comment, it appears you have found a workaround. |
Created attachment 472032 [details] Panic message Kernel panic under load during disk to net backup. Tested under 4.9, 4.10, and 4.11. All panics occur between 0.5TB to 6TB of transfer with: BUG: unable to handle kernel NULL pointer dereference at 0000000000000304 Attachments are for the 4.11.0