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From: "Pathak, Pravin" <pravin.pathak@intel.com>
To: "wangpcmic@163.com" <wangpcmic@163.com>,
	15720603159 <15720603159@163.com>
Cc: users <users@dpdk.org>
Subject: RE: vfio module crash know  when i used dpdk secondary process send pkts
Date: Mon, 28 Aug 2023 01:32:24 +0000	[thread overview]
Message-ID: <BL1PR11MB54617F3C30752B9A8ECC4E97F4E0A@BL1PR11MB5461.namprd11.prod.outlook.com> (raw)
In-Reply-To: <3b1e47f8.afb9.18a39bc9c6a.Coremail.wangpcmic@163.com>

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I am not 100% sure if this might be the cause, but please try disabling Linux ASLR.

$  echo 0 | sudo tee /proc/sys/kernel/randomize_va_space

From: wangpcmic@163.com <wangpcmic@163.com>
Sent: Sunday, August 27, 2023 9:23 PM
To: 15720603159 <15720603159@163.com>
Cc: users <users@dpdk.org>
Subject: Re: vfio module crash know when i used dpdk secondary process send pkts



---- Replied Message ----
08/23/2023 19:20
vfio module crash when i used dpdk secondary process send pkts
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.

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      reply	other threads:[~2023-08-28  1:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-22  1:33 vfio module crash " jinag
2023-08-23 12:41 ` Stephen Hemminger
2023-08-24  1:06   ` jinag
2023-09-05 23:25     ` Stephen Hemminger
2023-09-06  1:28       ` jinag
2023-08-28  1:22 ` vfio module crash know " wangpcmic
2023-08-28  1:32   ` Pathak, Pravin [this message]

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