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Dear Patrick,</div>
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Thank you for the understanding I already run multiple stress test but system is working fine without issue. Issue only occurs when cpu job are running.</div>
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Thanks &amp; Regards,</div>
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Anil Mahadev Misal&nbsp;</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Patrick Farrell &lt;pfarrell@thelustrecollective.com&gt;<br>
<b>Sent:</b> Friday, 25 September 2026 21:45:51<br>
<b>To:</b> Anil Mahadev Misal &lt;Anil.misal@netwebindia.com&gt;; Abdeslam Tahari &lt;abeslam@gmail.com&gt;<br>
<b>Cc:</b> Abdeslam Tah &lt;abdeslam.tahari.aflou@gmail.com&gt;; lustre-discuss &lt;lustre-discuss@lists.lustre.org&gt;<br>
<b>Subject:</b> Re: [lustre-discuss] lustre-discuss Digest, Vol 3, Issue 7</font>
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You don't often get email from pfarrell@thelustrecollective.com. <a href="https://aka.ms/LearnAboutSenderIdentification" style="background:revert!important; color:revert!important; direction:revert!important; display:revert!important; font-size:revert!important; opacity:revert!important; visibility:revert!important">
Learn why this is important</a> </div>
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While I don't have time to debug this, the backtrace strongly suggests the issue is a hang in Lustre code, rather than a node or kernel issue:</div>
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&quot;[72950.579937] NMI watchdog: Watchdog detected hard LOCKUP on cpu 143<br>
[72950.579947] Modules linked in: ib_core mgc(OE) lustre(OE) mdc(OE) lov(OE) osc(OE) lmv(OE) fid(OE) fld(OE) ksocklnd(OE) ptlrpc(OE) obdclass(OE) lnet(OE) libcfs(OE) sunrpc(E) bonding(E) tls(E) rfkill amd_atl(E) intel_rapl_msr(E) intel_rapl_common(E) amd64_edac(E)
 edac_mce_amd(E) vfat(E) fat(E) kvm_amd(E) ast kvm(E) drm_client_lib(E) drm_shmem_helper(E) ipmi_ssif(E) acpi_ipmi(E) drm_kms_helper(E) rapl(E) ipmi_si(E) acpi_cpufreq(E) i2c_piix4(E) pcspkr(E) k10temp(E) ipmi_devintf(E) i2c_smbus(E) ipmi_msghandler(E) joydev(E)
 fuse(E) drm(E) dm_mod(E) xfs(E) libcrc32c(E) sd_mod(E) sg(E) ahci(E) crct10dif_pclmul(E) libahci(E) crc32_pclmul(E) igb(E) crc32c_intel(E) i2c_algo_bit(E) bnxt_en libata(E) ghash_clmulni_intel(E) ccp(E) dca(E) sp5100_tco(E) rndis_host cdc_ether usbnet mii(E)<br>
[72950.580009] CPU: 143 PID: 1445 Comm: kworker/143:1 Kdump: loaded Tainted: G&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; OE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ------&nbsp; ---&nbsp; 5.14.0-611.24.1.el9_7.x86_64 #1<br>
[72950.580014] Hardware name: Tyrone Systems SDA200A2N-212/SDA200A2N-212, BIOS 3.9a 06/09/2026<br>
[72950.580016] Workqueue: events brw_queue_work [osc]<br>
[72950.580041] RIP: 0010:native_queued_spin_lock_slowpath+0x20d/0x2b0<br>
[72950.580052] Code: 85 c0 74 ec eb f5 41 8d 4d 01 41 c1 e4 10 c1 e1 12 44 09 e1 89 c8 c1 e8 10 66 87 45 02 89 c2 c1 e2 10 75 4a 31 d2 eb 02 f3 90 &lt;8b&gt; 45 00 66 85 c0 75 f6 89 c6 66 31 f6 39 ce 74 74 c6 45 00 01 48<br>
[72950.580053] RSP: 0018:ff59ebe75d71bbd8 EFLAGS: 00000002<br>
[72950.580055] RAX: 0000000002400101 RBX: ff32dd03fbff48c0 RCX: 0000000002400000<br>
[72950.580057] RDX: 0000000000000000 RSI: 0000000000000100 RDI: ff32dc4900e91680<br>
[72950.580058] RBP: ff32dc4900e91680 R08: 00007f9b2a236450 R09: 0000000000000dcb<br>
[72950.580059] R10: ffef2ac044a275c0 R11: ffef2ac0470d0bc0 R12: 0000000000000000<br>
[72950.580060] R13: 000000000000008f R14: 0000000000000000 R15: 0000000000000dca<br>
[72950.580061] FS:&nbsp; 0000000000000000(0000) GS:ff32dd03fbfc0000(0000) knlGS:0000000000000000<br>
[72950.580063] CS:&nbsp; 0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br>
[72950.580064] CR2: 00007f72c89fb780 CR3: 000000c19fcbe001 CR4: 0000000000f71ef0<br>
--<br>
[72950.580309]&nbsp; ? dequeue_task_fair+0xaa/0x370<br>
[72950.580312]&nbsp; osc_io_unplug0+0x7c/0xa0 [osc]<br>
[72950.580323]&nbsp; brw_queue_work+0x57/0x110 [osc]<br>
[72950.580334]&nbsp; process_one_work+0x193/0x380<br>
[72950.580341]&nbsp; worker_thread+0x281/0x3a0<br>
[72950.580344]&nbsp; ? __pfx_worker_thread+0x10/0x10<br>
[72950.580347]&nbsp; kthread+0x101/0x110<br>
[72950.580352]&nbsp; ? __pfx_kthread+0x10/0x10<br>
[72950.580355]&nbsp; ret_from_fork+0x28/0x50<br>
[72950.580362]&nbsp; &lt;/TASK&gt;<br>
[72950.580365] Kernel panic - not syncing: Hard LOCKUP<br>
[72950.580367] CPU: 143 PID: 1445 Comm: kworker/143:1 Kdump: loaded Tainted: G&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; OE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ------&nbsp; ---&nbsp; 5.14.0-611.24.1.el9_7.x86_64 #1<br>
[72950.580369] Hardware name: Tyrone Systems SDA200A2N-212/SDA200A2N-212, BIOS 3.9a 06/09/2026<br>
[72950.580370] Workqueue: events brw_queue_work [osc]<br>
[72950.580380] Call Trace:<br>
[72950.580382]&nbsp; &lt;NMI&gt;<br>
[72950.580383]&nbsp; dump_stack_lvl+0x34/0x48<br>
[72950.580389]&nbsp; panic+0x107/0x2bb<br>
[72950.580395]&nbsp; nmi_panic.cold+0xc/0xc<br>
[72950.580398]&nbsp; watchdog_overflow_callback.cold+0x5c/0x70<br>
[72950.580401]&nbsp; __perf_event_overflow+0x11f/0x360</div>
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&quot;</div>
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The CPU which reported a lockup is running Lustre code.&nbsp; Generic system stress testing is likely not relevant here.</div>
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Regards,</div>
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Patrick</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> lustre-discuss &lt;lustre-discuss-bounces@lists.lustre.org&gt; on behalf of Abdeslam Tahari via lustre-discuss &lt;lustre-discuss@lists.lustre.org&gt;<br>
<b>Sent:</b> Friday, September 25, 2026 11:10 AM<br>
<b>To:</b> Anil Mahadev Misal &lt;Anil.misal@netwebindia.com&gt;<br>
<b>Cc:</b> Abdeslam Tah &lt;abdeslam.tahari.aflou@gmail.com&gt;; lustre-discuss &lt;lustre-discuss@lists.lustre.org&gt;<br>
<b>Subject:</b> Re: [lustre-discuss] lustre-discuss Digest, Vol 3, Issue 7</font>
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<div>If you like I suggest that solution for your issue&nbsp;</div>
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<div dir="auto">It may probably a cou failure due to temperature or lack of power supply&nbsp;</div>
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<div dir="auto">To check that out&nbsp;</div>
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<div dir="auto">Install stress-ng</div>
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<div dir="auto">And check by the command</div>
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<div dir="auto">stress-ng --cpu 0 --cpu-method matrixprod -t</div>
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<div dir="auto">It will tell what component crashs the kernel and restarts the machine</div>
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<div dir="auto">You can install lm- sensors to check the temperature of the cpus during processing to see if there's no overheat&nbsp;</div>
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<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
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<div dir="ltr" class="x_x_gmail_attr">Le ven. 25 sept. 2026, 16:08, Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com">Anil.misal@netwebindia.com</a>&gt; a écrit&nbsp;:<br>
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Dear <a href="mailto:abdeslam.tahari.aflou@gmail.com" id="x_x_m_-7940056082399586645OWAAM000001" rel="noreferrer noopener noreferrer" target="_blank">
@Abdeslam Tah</a>,</div>
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We facing issue with both kernel&nbsp;</div>
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Thanks &amp; Regards,</div>
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Anil Mahadev Misal&nbsp;</div>
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<span style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(33,33,33)">Get
</span><span style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif; font-size:12pt"><a href="https://aka.ms/AAb9ysg" originalsrc="https://aka.ms/AAb9ysg" target="_blank" rel="noreferrer">Outlook for Android</a></span></div>
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<div id="x_x_m_-7940056082399586645divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Abdeslam Tahari &lt;<a href="mailto:abeslam@gmail.com" target="_blank" rel="noreferrer">abeslam@gmail.com</a>&gt;<br>
<b>Sent:</b> Friday, 25 September 2026 19:32:23<br>
<b>To:</b> Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com" target="_blank" rel="noreferrer">Anil.misal@netwebindia.com</a>&gt;<br>
<b>Cc:</b> Abdeslam Tah &lt;<a href="mailto:abdeslam.tahari.aflou@gmail.com" target="_blank" rel="noreferrer">abdeslam.tahari.aflou@gmail.com</a>&gt;; lustre-discuss &lt;<a href="mailto:lustre-discuss@lists.lustre.org" target="_blank" rel="noreferrer">lustre-discuss@lists.lustre.org</a>&gt;<br>
<b>Subject:</b> Re: [lustre-discuss] lustre-discuss Digest, Vol 3, Issue 7</font>
<div>&nbsp;</div>
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<div>Can you post the grub menu or the kernels installed in the boot directory of a node&nbsp;</div>
<div dir="auto">Please&nbsp;</div>
<div><br>
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<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
</div>
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<div dir="ltr">Le ven. 25 sept. 2026, 16:01, Abdeslam Tahari &lt;<a href="mailto:abeslam@gmail.com" target="_blank" rel="noreferrer">abeslam@gmail.com</a>&gt; a écrit&nbsp;:<br>
</div>
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<div>I think it's a kernel issue&nbsp;</div>
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<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
</div>
<br>
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<div dir="ltr">Le ven. 25 sept. 2026, 16:00, Abdeslam Tahari &lt;<a href="mailto:abeslam@gmail.com" rel="noreferrer noreferrer" target="_blank">abeslam@gmail.com</a>&gt; a écrit&nbsp;:<br>
</div>
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<div>Try to boot a node with an old kernel select it in&nbsp; the grub menu, or select an old kernel from the menu if you can , launch the job and see if it reboots</div>
<div><br>
</div>
<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
</div>
<br>
<div>
<div dir="ltr">Le ven. 25 sept. 2026, 15:52, Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com" rel="noreferrer noreferrer noreferrer" target="_blank">Anil.misal@netwebindia.com</a>&gt; a écrit&nbsp;:<br>
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Dear <a href="mailto:abdeslam.tahari.aflou@gmail.com" id="x_x_m_-7940056082399586645x_m_392466341851885058m_-3274279295691625437m_-4787019098833906098OWAAM000001" rel="noreferrer noopener noreferrer noreferrer noreferrer noreferrer" target="_blank">
@Abdeslam Tah</a>,</div>
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<br>
</div>
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There is no change in kernel from last 1.5 month. Last week we had update kernel of one CPU nodes, but issue remains same.</div>
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<br>
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It's strange that node reboot happened only running cpu job. GPU jobs are working fine&nbsp;</div>
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Thanks &amp; Regards,</div>
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Anil Mahadev Misal&nbsp;</div>
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<font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Abdeslam Tahari &lt;<a href="mailto:abeslam@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">abeslam@gmail.com</a>&gt;<br>
<b>Sent:</b> Friday, 25 September 2026 19:17:09<br>
<b>To:</b> Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">Anil.misal@netwebindia.com</a>&gt;<br>
<b>Cc:</b> Abdeslam Tah &lt;<a href="mailto:abdeslam.tahari.aflou@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">abdeslam.tahari.aflou@gmail.com</a>&gt;; lustre-discuss &lt;<a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss@lists.lustre.org</a>&gt;<br>
<b>Subject:</b> Re: [lustre-discuss] lustre-discuss Digest, Vol 3, Issue 7</font>
<div>&nbsp;</div>
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<div style="background:revert!important; border:revert!important; color:revert!important; direction:revert!important; display:revert!important; font-size:revert!important; height:revert!important; letter-spacing:revert!important; line-height:revert!important; margin:revert!important; opacity:revert!important; outline:revert!important; overflow:revert!important; padding:revert!important; table-layout:revert!important; text-align:revert!important; text-indent:revert!important; text-orientation:revert!important; text-overflow:revert!important; text-transform:revert!important; vertical-align:revert!important; white-space:revert!important; width:revert!important; word-break:revert!important; word-spacing:revert!important; writing-mode:revert!important; zoom:revert!important">
You don't often get email from <a href="mailto:abeslam@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">
abeslam@gmail.com</a>. <a href="https://aka.ms/LearnAboutSenderIdentification" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank" style="background:revert!important; color:revert!important; direction:revert!important; display:revert!important; font-size:revert!important; opacity:revert!important">
Learn why this is important</a> </div>
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<td valign="middle" align="left" width="75px" bgcolor="#EAEAEA" cellpadding="7px 5px 7px 5px" color="#212121" style="background:revert!important; border:revert!important; color:revert!important; direction:revert!important; display:revert!important; font-size:revert!important; height:revert!important; letter-spacing:revert!important; line-height:revert!important; margin:revert!important; opacity:revert!important; outline:revert!important; overflow:revert!important; padding:revert!important; table-layout:revert!important; text-align:revert!important; text-indent:revert!important; text-orientation:revert!important; text-overflow:revert!important; text-transform:revert!important; vertical-align:revert!important; white-space:revert!important; width:revert!important; word-break:revert!important; word-spacing:revert!important; writing-mode:revert!important; zoom:revert!important; width:75px!important; background-color:#eaeaea!important; padding:7px 5px 7px 5px!important; font-family:wf_segoe-ui_normal,Segoe UI,Segoe WP,Tahoma,Arial,sans-serif!important; font-size:12px!important; font-weight:normal!important; color:#212121!important; text-align:left!important; word-wrap:break-word!important">
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<div>It has been updated or upgraded recently?</div>
<div dir="auto"><br>
</div>
<div dir="auto">A new kernel version was installed recently?</div>
<div><br>
</div>
<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
</div>
<br>
<div>
<div dir="ltr">Le ven. 25 sept. 2026, 15:40, Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">Anil.misal@netwebindia.com</a>&gt; a écrit&nbsp;:<br>
</div>
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<div>
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Dear <a href="mailto:abdeslam.tahari.aflou@gmail.com" id="x_x_m_-7940056082399586645x_m_392466341851885058m_-3274279295691625437m_-4787019098833906098x_m_-3665079097594208448OWAAM000001" rel="noreferrer noopener noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">
@Abdeslam Tah</a>,</div>
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<br>
</div>
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Thank you for your support.</div>
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<br>
</div>
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Os version Rocky linux 9.8</div>
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<br>
</div>
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Thanks &amp; Regards,</div>
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Anil Mahadev Misal&nbsp;</div>
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<div id="x_x_m_-7940056082399586645x_m_392466341851885058m_-3274279295691625437m_-4787019098833906098x_m_-3665079097594208448divRplyFwdMsg" dir="ltr">
<font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Abdeslam Tah &lt;<a href="mailto:abdeslam.tahari.aflou@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">abdeslam.tahari.aflou@gmail.com</a>&gt;<br>
<b>Sent:</b> Friday, 25 September 2026 19:07:01<br>
<b>To:</b> Abdeslam Tahari &lt;<a href="mailto:abeslam@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">abeslam@gmail.com</a>&gt;<br>
<b>Cc:</b> Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">Anil.misal@netwebindia.com</a>&gt;; lustre-discuss &lt;<a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss@lists.lustre.org</a>&gt;<br>
<b>Subject:</b> Re: [lustre-discuss] lustre-discuss Digest, Vol 3, Issue 7</font>
<div>&nbsp;</div>
</div>
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You don't often get email from <a href="mailto:abdeslam.tahari.aflou@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">
abdeslam.tahari.aflou@gmail.com</a>. <a href="https://aka.ms/LearnAboutSenderIdentification" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank" style="background:revert!important; color:revert!important; direction:revert!important; display:revert!important; font-size:revert!important; opacity:revert!important">
Learn why this is important</a> </div>
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<div>
<div dir="auto">What is the installed os operating system&nbsp;
<div dir="auto">I can help you out&nbsp;</div>
</div>
<br>
<div>
<div dir="ltr">Le ven. 25 sept. 2026, 15:32, Abdeslam Tahari via lustre-discuss &lt;<a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss@lists.lustre.org</a>&gt; a écrit&nbsp;:<br>
</div>
<blockquote style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="auto">
<div>Hello&nbsp;</div>
<div dir="auto"><br>
</div>
<div dir="auto">I \U0001f914 it's a kernel panic that's why the nodes reboot.</div>
<div dir="auto"><br>
</div>
<div dir="auto">What kind of OS is installed on nodes?</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thanks&nbsp;</div>
<div><br>
</div>
<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
</div>
<br>
<div>
<div dir="ltr">Le ven. 25 sept. 2026, 12:14, Anil Mahadev Misal via lustre-discuss &lt;<a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss@lists.lustre.org</a>&gt;
 a écrit&nbsp;:<br>
</div>
<blockquote style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(51,51,51)">
Dear Team,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(51,51,51)">
<br>
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<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(51,51,51)">
Any update on below issue!</div>
<div id="x_x_m_-7940056082399586645x_m_392466341851885058m_-3274279295691625437m_-4787019098833906098x_m_-3665079097594208448x_m_-6294600383031734074m_-846357289642987727Signature">
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<br>
</div>
<p style="margin-top:1em; margin-bottom:1em"><span style="font-family:&quot;Franklin Gothic Book&quot;,&quot;Avenir Next Condensed&quot;,sans-serif; font-size:11pt; color:rgb(78,89,89)"></span><span style="font-family:Tahoma,Geneva,sans-serif; font-size:11pt; color:rgb(0,0,0)"></span></p>
<p style="margin-top:0px; margin-bottom:0px"><span style="font-family:&quot;Franklin Gothic Book&quot;,&quot;Avenir Next Condensed&quot;,sans-serif; font-size:11pt; color:rgb(78,89,89)">Thanks &amp; Regards,<br>
Anil Mahadev Misal</span><span style="font-family:Tahoma,Geneva,sans-serif; font-size:11pt; color:rgb(0,0,0)"><br>
</span><span style="font-family:&quot;Aptos Narrow&quot;,Aptos_EmbeddedFont,Aptos_MSFontService,sans-serif; font-size:11pt; color:rgb(0,0,0)">\U0001f4f1 +91-7045598174<br>
\U0001f4e7 <a href="mailto:supportmum@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">
supportmum@netwebindia.com</a></span></p>
<div style="font-family:Tahoma,Geneva,sans-serif; font-size:12pt; color:rgb(51,51,51)">
<br>
</div>
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<font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> lustre-discuss &lt;<a href="mailto:lustre-discuss-bounces@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss-bounces@lists.lustre.org</a>&gt;
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lustre-discuss-request@lists.lustre.org</a> &lt;<a href="mailto:lustre-discuss-request@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss-request@lists.lustre.org</a>&gt;<br>
<b>Sent:</b> 15 September 2026 20:53<br>
<b>To:</b> <a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">
lustre-discuss@lists.lustre.org</a> &lt;<a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss@lists.lustre.org</a>&gt;<br>
<b>Subject:</b> lustre-discuss Digest, Vol 3, Issue 7</font>
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Today's Topics:<br>
<br>
&nbsp;&nbsp; 1. Lustre Client cpu nodes reboot (Anil Mahadev Misal)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Tue, 15 Sep 2026 15:22:59 +0000<br>
From: Anil Mahadev Misal &lt;<a href="mailto:Anil.misal@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">Anil.misal@netwebindia.com</a>&gt;<br>
To: &quot;<a href="mailto:lustre-discuss@lists.lustre.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">lustre-discuss@lists.lustre.org</a>&quot;<br>
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Cc: Elaiya Rajan &lt;<a href="mailto:Elaiyarajan.N@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">Elaiyarajan.N@netwebindia.com</a>&gt;, Tata Srinivas<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;<a href="mailto:srinivas.t@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">srinivas.t@netwebindia.com</a>&gt;<br>
Subject: [lustre-discuss] Lustre Client cpu nodes reboot<br>
Message-ID:<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;<a href="mailto:MAUPR01MB12521E0953552241D471D667F8FBA2@MAUPR01MB12521.INDPRD01.PROD.OUTLOOK.COM" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">MAUPR01MB12521E0953552241D471D667F8FBA2@MAUPR01MB12521.INDPRD01.PROD.OUTLOOK.COM</a>&gt;<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>
Content-Type: text/plain; charset=&quot;utf-8&quot;<br>
<br>
Dear Team,<br>
We are facing an issue with all of the Lustre client nodes, where the nodes gets rebooted while running CPU-intensive jobs.<br>
We have observed that the nodes are working fine when running GPU jobs, and the reboot issue is occurring specifically during CPU job execution.<br>
<br>
<br>
lctl lustre_build_version<br>
Lustre version: 2.17.0<br>
<br>
pcs status<br>
Cluster name: lustre-ha<br>
Cluster Summary:<br>
&nbsp; * Stack: corosync (Pacemaker is running)<br>
&nbsp; * Current DC: ioserver1 (version 2.1.10-1.el9-5693eaeee) - partition with quorum<br>
&nbsp; * Last updated: Tue Sep 15 20:48:55 2026 on ioserver1<br>
&nbsp; * Last change:&nbsp; Sat Sep 12 14:20:53 2026 by root via root on ioserver1<br>
&nbsp; * 2 nodes configured<br>
&nbsp; * 24 resource instances configured<br>
<br>
Node List:<br>
&nbsp; * Online: [ ioserver1 ioserver2 ]<br>
<br>
Full List of Resources:<br>
&nbsp; * Resource Group: gr-lustre:<br>
&nbsp;&nbsp;&nbsp; * mgt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * mdt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp; * Resource Group: gr-storage1:<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * ost0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * ost1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * ost2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp;&nbsp;&nbsp; * ost3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp; * Resource Group: gr-storage2:<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * ost4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * ost5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * ost6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * zfs-ostpool7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:heartbeat:ZFS):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp;&nbsp;&nbsp; * ost7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ocf:lustre:Lustre):&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver2<br>
&nbsp; * Clone Set: healthLNET-clone [healthLNET]:<br>
&nbsp;&nbsp;&nbsp; * Started: [ ioserver1 ioserver2 ]<br>
&nbsp; * Clone Set: healthLUSTRE-clone [healthLUSTRE]:<br>
&nbsp;&nbsp;&nbsp; * Started: [ ioserver1 ioserver2 ]<br>
&nbsp; * fence-ioserver1&nbsp;&nbsp;&nbsp;&nbsp; (stonith:fence_ipmilan):&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
&nbsp; * fence-ioserver2&nbsp;&nbsp;&nbsp;&nbsp; (stonith:fence_ipmilan):&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Started ioserver1<br>
<br>
Daemon Status:<br>
&nbsp; corosync: active/enabled<br>
&nbsp; pacemaker: active/enabled<br>
&nbsp; pcsd: active/enabled<br>
<br>
<br>
Crash dump<br>
sudo cat /var/crash/127.0.0.1-2026-09-15-03:52:08/vmcore-dmesg.txt | grep -E -C 10 &quot;Kernel panic|BUG:|Oops|RIP:&quot;<br>
[64730.820615] LustreError: 4161:0:(osc_request.c:1009:osc_init_grant()) lustrefs-OST0004-osc-ff32dc4364de0800: granted 3407872 but already consumed 5111808<br>
[66108.385514] LustreError: 4161:0:(osc_request.c:1009:osc_init_grant()) lustrefs-OST0004-osc-ff32dc4364de0800: granted 3407872 but already consumed 5111808<br>
[70006.232564] LustreError: 4161:0:(osc_request.c:1009:osc_init_grant()) lustrefs-OST0004-osc-ff32dc4364de0800: granted 3407872 but already consumed 5111808<br>
[71695.499922] LustreError: 4161:0:(osc_request.c:1009:osc_init_grant()) lustrefs-OST0004-osc-ff32dc4364de0800: granted 3407872 but already consumed 5111808<br>
[72383.549162] LustreError: 4161:0:(osc_request.c:1009:osc_init_grant()) lustrefs-OST0004-osc-ff32dc4364de0800: granted 3407872 but already consumed 5111808<br>
[72950.579937] NMI watchdog: Watchdog detected hard LOCKUP on cpu 143<br>
[72950.579947] Modules linked in: ib_core mgc(OE) lustre(OE) mdc(OE) lov(OE) osc(OE) lmv(OE) fid(OE) fld(OE) ksocklnd(OE) ptlrpc(OE) obdclass(OE) lnet(OE) libcfs(OE) sunrpc(E) bonding(E) tls(E) rfkill amd_atl(E) intel_rapl_msr(E) intel_rapl_common(E) amd64_edac(E)
 edac_mce_amd(E) vfat(E) fat(E) kvm_amd(E) ast kvm(E) drm_client_lib(E) drm_shmem_helper(E) ipmi_ssif(E) acpi_ipmi(E) drm_kms_helper(E) rapl(E) ipmi_si(E) acpi_cpufreq(E) i2c_piix4(E) pcspkr(E) k10temp(E) ipmi_devintf(E) i2c_smbus(E) ipmi_msghandler(E) joydev(E)
 fuse(E) drm(E) dm_mod(E) xfs(E) libcrc32c(E) sd_mod(E) sg(E) ahci(E) crct10dif_pclmul(E) libahci(E) crc32_pclmul(E) igb(E) crc32c_intel(E) i2c_algo_bit(E) bnxt_en libata(E) ghash_clmulni_intel(E) ccp(E) dca(E) sp5100_tco(E) rndis_host cdc_ether usbnet mii(E)<br>
[72950.580009] CPU: 143 PID: 1445 Comm: kworker/143:1 Kdump: loaded Tainted: G&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; OE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ------&nbsp; ---&nbsp; 5.14.0-611.24.1.el9_7.x86_64 #1<br>
[72950.580014] Hardware name: Tyrone Systems SDA200A2N-212/SDA200A2N-212, BIOS 3.9a 06/09/2026<br>
[72950.580016] Workqueue: events brw_queue_work [osc]<br>
[72950.580041] RIP: 0010:native_queued_spin_lock_slowpath+0x20d/0x2b0<br>
[72950.580052] Code: 85 c0 74 ec eb f5 41 8d 4d 01 41 c1 e4 10 c1 e1 12 44 09 e1 89 c8 c1 e8 10 66 87 45 02 89 c2 c1 e2 10 75 4a 31 d2 eb 02 f3 90 &lt;8b&gt; 45 00 66 85 c0 75 f6 89 c6 66 31 f6 39 ce 74 74 c6 45 00 01 48<br>
[72950.580053] RSP: 0018:ff59ebe75d71bbd8 EFLAGS: 00000002<br>
[72950.580055] RAX: 0000000002400101 RBX: ff32dd03fbff48c0 RCX: 0000000002400000<br>
[72950.580057] RDX: 0000000000000000 RSI: 0000000000000100 RDI: ff32dc4900e91680<br>
[72950.580058] RBP: ff32dc4900e91680 R08: 00007f9b2a236450 R09: 0000000000000dcb<br>
[72950.580059] R10: ffef2ac044a275c0 R11: ffef2ac0470d0bc0 R12: 0000000000000000<br>
[72950.580060] R13: 000000000000008f R14: 0000000000000000 R15: 0000000000000dca<br>
[72950.580061] FS:&nbsp; 0000000000000000(0000) GS:ff32dd03fbfc0000(0000) knlGS:0000000000000000<br>
[72950.580063] CS:&nbsp; 0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br>
[72950.580064] CR2: 00007f72c89fb780 CR3: 000000c19fcbe001 CR4: 0000000000f71ef0<br>
--<br>
[72950.580309]&nbsp; ? dequeue_task_fair+0xaa/0x370<br>
[72950.580312]&nbsp; osc_io_unplug0+0x7c/0xa0 [osc]<br>
[72950.580323]&nbsp; brw_queue_work+0x57/0x110 [osc]<br>
[72950.580334]&nbsp; process_one_work+0x193/0x380<br>
[72950.580341]&nbsp; worker_thread+0x281/0x3a0<br>
[72950.580344]&nbsp; ? __pfx_worker_thread+0x10/0x10<br>
[72950.580347]&nbsp; kthread+0x101/0x110<br>
[72950.580352]&nbsp; ? __pfx_kthread+0x10/0x10<br>
[72950.580355]&nbsp; ret_from_fork+0x28/0x50<br>
[72950.580362]&nbsp; &lt;/TASK&gt;<br>
[72950.580365] Kernel panic - not syncing: Hard LOCKUP<br>
[72950.580367] CPU: 143 PID: 1445 Comm: kworker/143:1 Kdump: loaded Tainted: G&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; OE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ------&nbsp; ---&nbsp; 5.14.0-611.24.1.el9_7.x86_64 #1<br>
[72950.580369] Hardware name: Tyrone Systems SDA200A2N-212/SDA200A2N-212, BIOS 3.9a 06/09/2026<br>
[72950.580370] Workqueue: events brw_queue_work [osc]<br>
[72950.580380] Call Trace:<br>
[72950.580382]&nbsp; &lt;NMI&gt;<br>
[72950.580383]&nbsp; dump_stack_lvl+0x34/0x48<br>
[72950.580389]&nbsp; panic+0x107/0x2bb<br>
[72950.580395]&nbsp; nmi_panic.cold+0xc/0xc<br>
[72950.580398]&nbsp; watchdog_overflow_callback.cold+0x5c/0x70<br>
[72950.580401]&nbsp; __perf_event_overflow+0x11f/0x360<br>
--<br>
[72950.580418]&nbsp; ? ghes_copy_tofrom_phys+0x74/0x120<br>
[72950.580422]&nbsp; ? srso_alias_return_thunk+0x5/0xfbef5<br>
[72950.580423]&nbsp; ? __ghes_peek_estatus.isra.0+0x49/0xb0<br>
[72950.580426]&nbsp; ? srso_alias_return_thunk+0x5/0xfbef5<br>
[72950.580427]&nbsp; ? ghes_in_nmi_queue_one_entry.constprop.0+0x3b/0x2a0<br>
[72950.580431]&nbsp; perf_event_nmi_handler+0x28/0x50<br>
[72950.580433]&nbsp; nmi_handle.part.0+0x56/0x110<br>
[72950.580437]&nbsp; default_do_nmi+0x127/0x180<br>
[72950.580441]&nbsp; exc_nmi+0x100/0x180<br>
[72950.580444]&nbsp; end_repeat_nmi+0xf/0x5e<br>
[72950.580447] RIP: 0010:native_queued_spin_lock_slowpath+0x20d/0x2b0<br>
[72950.580450] Code: 85 c0 74 ec eb f5 41 8d 4d 01 41 c1 e4 10 c1 e1 12 44 09 e1 89 c8 c1 e8 10 66 87 45 02 89 c2 c1 e2 10 75 4a 31 d2 eb 02 f3 90 &lt;8b&gt; 45 00 66 85 c0 75 f6 89 c6 66 31 f6 39 ce 74 74 c6 45 00 01 48<br>
[72950.580452] RSP: 0018:ff59ebe75d71bbd8 EFLAGS: 00000002<br>
[72950.580453] RAX: 0000000002400101 RBX: ff32dd03fbff48c0 RCX: 0000000002400000<br>
[72950.580454] RDX: 0000000000000000 RSI: 0000000000000100 RDI: ff32dc4900e91680<br>
[72950.580455] RBP: ff32dc4900e91680 R08: 00007f9b2a236450 R09: 0000000000000dcb<br>
[72950.580456] R10: ffef2ac044a275c0 R11: ffef2ac0470d0bc0 R12: 0000000000000000<br>
[72950.580457] R13: 000000000000008f R14: 0000000000000000 R15: 0000000000000dca<br>
[72950.580461]&nbsp; ? native_queued_spin_lock_slowpath+0x20d/0x2b0<br>
[72950.580464]&nbsp; ? native_queued_spin_lock_slowpath+0x20d/0x2b0<br>
[72950.580467]&nbsp; &lt;/NMI&gt;<br>
<br>
<br>
<br>
Thanks &amp; Regards,<br>
Anil Mahadev Misal<br>
\U0001f4f1 +91-7045598174<br>
\U0001f4e7 <a href="mailto:supportmum@netwebindia.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">
supportmum@netwebindia.com</a><br>
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End of lustre-discuss Digest, Vol 3, Issue 7<br>
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