* vfio module crash when i used dpdk secondary process send pkts
@ 2023-08-23 6:24 jinag
0 siblings, 0 replies; 5+ messages in thread
From: jinag @ 2023-08-23 6:24 UTC (permalink / raw)
To: users, beilei.xing
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Hi
when I use dpdk to call rte_eth_tx_burst function for sending data from the secondary process, vfio will crash:
PID: 60699 TASK: ffff8f0152235df00 CPU: 14 COMMAND: "testlstack02"
#0 [ffffa7d8cecc39a8] machine_kexec at ffffffff9045d67b
#1 [ffffa7d8ceec3a00] __crash_kexec at ffffffff90562e92
#2 [ffffa7d8ceec3ac0] panic at ffffffff904b9b79
#3 [ffffa7d8ceec3b48] oops_end at ffffffff904231fc
#4 [ffffa7d8ceec3b70] remap_pfn_range at ffffffff90664772
#5 [ffffa7d8ceec3c58] remap_pfn_range at ffffffff90664772
#6 [ffffa7d8ceec3da0] vfio_pci_mmap_fault at ffffffffc-bda821 [vfio_pci]
#7 [ffffa7d8ceec3dc0] __do_fault at ffffffff90662ee9
#8 [ffffa7d8ceec3df0] do fault at ffffffff90663b2c
#9 [ffffa7d8ceec3e90] __handle_mm_fault at ffffffff90663c9c
#10 [ffffa7d8ceec3ec0] handle_mm_fault at ffffffff9047103b
#11 [ffffa7d8ceec3ee0] __do_page_fault at ffffffff904712e1
#12 [ffffa7d8ceec3f20] do_page_fault at ffffffff9047122e
#13 [ffffa7d8ceec3f50] page_fault at ffffffff90e012de
The crash occurs when the secondary queue of the secondary process send pkts. I have tested that the primary process and the first queue of the secondary process do not crash. I use i40e X710 nic.
Has anyone ever encountered simlilar issue? please provide some ideas for fixing the issue.
Thanks!
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: vfio module crash when i used dpdk secondary process send pkts
2023-08-24 1:06 ` jinag
@ 2023-09-05 23:25 ` Stephen Hemminger
0 siblings, 0 replies; 5+ messages in thread
From: Stephen Hemminger @ 2023-09-05 23:25 UTC (permalink / raw)
To: jinag; +Cc: users
On Thu, 24 Aug 2023 09:06:44 +0800 (CST)
jinag <15720603159@163.com> wrote:
> This is definitely a bug in the kernel, I am looking to see if there's a bugfix patch in the kernel community. but maybe the app passed an incorrect parameter that caused kernel crash?
> The kernel version is 4.18.0-147.5.1.9, it is based on upstream linux at version 4.18.0
Is this RHEL?
4.18 was end of life in November 2018.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: vfio module crash when i used dpdk secondary process send pkts
2023-08-22 1:33 jinag
@ 2023-08-23 12:41 ` Stephen Hemminger
2023-08-24 1:06 ` jinag
0 siblings, 1 reply; 5+ messages in thread
From: Stephen Hemminger @ 2023-08-23 12:41 UTC (permalink / raw)
To: jinag; +Cc: users
On Tue, 22 Aug 2023 09:33:39 +0800 (CST)
jinag <15720603159@163.com> wrote:
> when I use dpdk to call rte_eth_tx_burst function for sending data from the secondary process, vfio will crash:
>
>
> PID: 60699 TASK: ffff8f0152235df00 CPU: 14 COMMAND: "testlstack02"
> #0 [ffffa7d8cecc39a8] machine_kexec at ffffffff9045d67b
> #1 [ffffa7d8ceec3a00] __crash_kexec at ffffffff90562e92
> #2 [ffffa7d8ceec3ac0] panic at ffffffff904b9b79
> #3 [ffffa7d8ceec3b48] oops_end at ffffffff904231fc
> #4 [ffffa7d8ceec3b70] remap_pfn_range at ffffffff90664772
> #5 [ffffa7d8ceec3c58] remap_pfn_range at ffffffff90664772
> #6 [ffffa7d8ceec3da0] vfio_pci_mmap_fault at ffffffffc-bda821 [vfio_pci]
> #7 [ffffa7d8ceec3dc0] __do_fault at ffffffff90662ee9
> #8 [ffffa7d8ceec3df0] do fault at ffffffff90663b2c
> #9 [ffffa7d8ceec3e90] __handle_mm_fault at ffffffff90663c9c
> #10 [ffffa7d8ceec3ec0] handle_mm_fault at ffffffff9047103b
> #11 [ffffa7d8ceec3ee0] __do_page_fault at ffffffff904712e1
> #12 [ffffa7d8ceec3f20] do_page_fault at ffffffff9047122e
> #13 [ffffa7d8ceec3f50] page_fault at ffffffff90e012de
>
>
> The crash occurs when the secondary queue of the secondary process send pkts. I have tested that the primary process and the first queue of the secondary process do not crash. I use i40e X710 nic.
>
>
> Has anyone ever encountered simlilar issue? please provide some ideas for fixing the issue.
> Thanks!
>
If this is a kernel crash, it is a kernel bug. No matter what application does VFIO in kernel
should not panic. What kernel version are you using? Is it an upstream long-term-stable kernel?
^ permalink raw reply [flat|nested] 5+ messages in thread
* vfio module crash when i used dpdk secondary process send pkts
@ 2023-08-23 1:24 jinag
0 siblings, 0 replies; 5+ messages in thread
From: jinag @ 2023-08-23 1:24 UTC (permalink / raw)
To: users
Hi:
when I use dpdk to call rte_eth_tx_burst function for sending data from the secondary process, vfio will crash:
PID: 60699 TASK: ffff8f0152235df00 CPU: 14 COMMAND: "testlstack02"
#0 [ffffa7d8cecc39a8] machine_kexec at ffffffff9045d67b
#1 [ffffa7d8ceec3a00] __crash_kexec at ffffffff90562e92
#2 [ffffa7d8ceec3ac0] panic at ffffffff904b9b79
#3 [ffffa7d8ceec3b48] oops_end at ffffffff904231fc
#4 [ffffa7d8ceec3b70] remap_pfn_range at ffffffff90664772
#5 [ffffa7d8ceec3c58] remap_pfn_range at ffffffff90664772
#6 [ffffa7d8ceec3da0] vfio_pci_mmap_fault at ffffffffc-bda821 [vfio_pci]
#7 [ffffa7d8ceec3dc0] __do_fault at ffffffff90662ee9
#8 [ffffa7d8ceec3df0] do fault at ffffffff90663b2c
#9 [ffffa7d8ceec3e90] __handle_mm_fault at ffffffff90663c9c
#10 [ffffa7d8ceec3ec0] handle_mm_fault at ffffffff9047103b
#11 [ffffa7d8ceec3ee0] __do_page_fault at ffffffff904712e1
#12 [ffffa7d8ceec3f20] do_page_fault at ffffffff9047122e
#13 [ffffa7d8ceec3f50] page_fault at ffffffff90e012de
The crash occurs when the secondary queue of the secondary process send pkts. I have tested that the primary process and the first queue of the secondary process do not crash. I use i40e X710 nic.
Has anyone ever encountered simlilar issue? please provide some ideas for fixing the issue.
Thanks!
^ permalink raw reply [flat|nested] 5+ messages in thread
* vfio module crash when i used dpdk secondary process send pkts
@ 2023-08-22 1:33 jinag
2023-08-23 12:41 ` Stephen Hemminger
0 siblings, 1 reply; 5+ messages in thread
From: jinag @ 2023-08-22 1:33 UTC (permalink / raw)
To: users
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when I use dpdk to call rte_eth_tx_burst function for sending data from the secondary process, vfio will crash:
PID: 60699 TASK: ffff8f0152235df00 CPU: 14 COMMAND: "testlstack02"
#0 [ffffa7d8cecc39a8] machine_kexec at ffffffff9045d67b
#1 [ffffa7d8ceec3a00] __crash_kexec at ffffffff90562e92
#2 [ffffa7d8ceec3ac0] panic at ffffffff904b9b79
#3 [ffffa7d8ceec3b48] oops_end at ffffffff904231fc
#4 [ffffa7d8ceec3b70] remap_pfn_range at ffffffff90664772
#5 [ffffa7d8ceec3c58] remap_pfn_range at ffffffff90664772
#6 [ffffa7d8ceec3da0] vfio_pci_mmap_fault at ffffffffc-bda821 [vfio_pci]
#7 [ffffa7d8ceec3dc0] __do_fault at ffffffff90662ee9
#8 [ffffa7d8ceec3df0] do fault at ffffffff90663b2c
#9 [ffffa7d8ceec3e90] __handle_mm_fault at ffffffff90663c9c
#10 [ffffa7d8ceec3ec0] handle_mm_fault at ffffffff9047103b
#11 [ffffa7d8ceec3ee0] __do_page_fault at ffffffff904712e1
#12 [ffffa7d8ceec3f20] do_page_fault at ffffffff9047122e
#13 [ffffa7d8ceec3f50] page_fault at ffffffff90e012de
The crash occurs when the secondary queue of the secondary process send pkts. I have tested that the primary process and the first queue of the secondary process do not crash. I use i40e X710 nic.
Has anyone ever encountered simlilar issue? please provide some ideas for fixing the issue.
Thanks!
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