TCS Confidential
Hi Stephen, Thank you for your reply. Please find my answers inline. 1.Do you have threads fighting over timer? No , we are running the thread on only one core so there is no deadlock here. But as discussed earlier the thread is getting stuck in an infinite while loop with prev[lvl]->sl_next[lvl] = -459511634 in timer_get_prev_enteries(). 2.What context is rte_timer_reset() being called in? During Uplink and Downlink data transfer, we are using the thread of fronthaul library, where it executes callbacks for every 1 ms, and for every call back we are trying to reset the timer. 3.The commit id"[cid:2e8dda97-6a2a-474d-ba0a-98e7789a4014]" which you have shared, we are unable to find it in the git. If possible, can you please share the link of the same? -- Thanks and Regards Jayasvi Battu / Nagma TCS Confidential -----Original Message----- From: Stephen Hemminger <step...@networkplumber.org> Sent: Monday, November 6, 2023 9:57 PM To: Nagma Meraj <nagma.me...@tcs.com> Cc: dev@dpdk.org; Jayasvi Battu <jayasvi.ba...@tcs.com>; RAJESH GUTTULA <rajesh.gutt...@tcs.com>; Nidhi Tomar <nidhi.tom...@tcs.com> Subject: Re: rte_timer_reset related issues in DPDK 20.05 External Email : Be cautious while opening any links or attachments. On Mon, 6 Nov 2023 10:31:20 +0000 Nagma Meraj <nagma.me...@tcs.com<mailto:nagma.me...@tcs.com>> wrote: > TCS Confidential > > Hi, > > We are working on Front Haul Library which is using DPDK internally for data > accleration. > In that we are facing the following issues: > 1.In Front Haul Library, one of the threads xran_timing_source_thread() is > using DPDK rte_timer_reset() where in the timer_add() it is printing negative > values in the timer_get_prev_enteries(). Do you have threads fighting over timer? What context is rte_timer_reset() being called in? > 2. That is,in prev[lvl]->sl_next[lvl] = -459511634 is taking negative value > in a while loop as in the below code snippet and is going in an infinite loop > because of which the above thread is getting stuck here and it is failing. > Can we get possible scenarios when this type of errors generally occurs? > > [cid:2e8dda97-6a2a-474d-ba0a-98e7789a4014] > > > Thanks & Regards, > Nagma Meraj > > > TCS Confidential > =====-----=====-----===== > Notice: The information contained in this e-mail message and/or > attachments to it may contain confidential or privileged information. > If you are not the intended recipient, any dissemination, use, review, > distribution, printing or copying of the information contained in this > e-mail message and/or attachments to it are strictly prohibited. If > you have received this communication in error, please notify us by > reply e-mail or telephone and immediately and permanently delete the > message and any attachments. Thank you Please don't put this on mailing list mail. If lawyers are watching, in theory we should ignore your mail.
