<font size=2 face="sans-serif">Robert,</font><br><br><font size=2 face="sans-serif">What is the scale version ? This issue
may be related to these alerts.</font><br><br><a href=https://www.ibm.com/support/pages/node/6355983><font size=3 color=blue>https://www.ibm.com/support/pages/node/6355983</font></a><br><a href=https://www.ibm.com/support/pages/node/6380740><font size=2 color=blue face="sans-serif">https://www.ibm.com/support/pages/node/6380740</font></a><br><br><font size=3>These are the recommended steps to resolve the issue,
but need more details on the scale version.</font><br><font size=3><br>1. Stop all AFM filesets at cache using "mmafmctl device stop -j fileset"
command.<br>2. Perform rolling upgrade parallely at both cache and home clusters<br> a. All nodes on home cluster to 5.0.5.6<br> b. All gateway nodes in cache cluster to 5.0.5.6<br> 3. At home cluster, for each fileset target path, repeat below steps<br> a. Remove .afmctl file<br> mmafmlocal rm <fileset
target path>/.afm/.afmctl<br> b. Enable AFM<br> mmafmconfig enable <fileset
target path><br>4. Start all AFM filesets at cache using "mmafmctl device start -j
fileset" command. </font><br><br><font size=2 face="sans-serif">~Venkat (vpuvvada@in.ibm.com)</font><br><br><br><br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">Robert Horton <robert.horton@icr.ac.uk></font><br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">"gpfsug-discuss@spectrumscale.org"
<gpfsug-discuss@spectrumscale.org></font><br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">03/18/2021 09:17 PM</font><br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[EXTERNAL] [gpfsug-discuss]
SpectrumScale / AFM / Singularity soft lockups</font><br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><br><hr noshade><br><br><br><font size=3>Hello,</font><br><br><font size=3>We've recently started having an issue where processes
running in a singularity container get stuck in a soft lockup and eventually
the node needs to be forcibly rebooted. I have included a sample call trace
below. Additionally, other (non-singularity) processes on other nodes accessing
the same fileset seem to get into the same state. It's also an AFM IW fileset
just to add to the complexity ;)</font><br><br><font size=3>Does anyone have any thoughts on what might be happening
/ how to proceed? I'm not really sure if it's a GPFS issue or a Singularity
/ Kernel issue - although fact it seems to spread to other nodes would
seem to suggest some GPFS involvement. It's possible the user is doing
something inadvisable with Singularity (it's difficult to work out what's
happening in the Nextflow pipeline) but even if they are it would be good
to find a way of preventing them taking nodes down. I'm assuming the AFM
is unlikely to be relevant - any views on that?</font><br><br><font size=3>Thanks,</font><br><font size=3>Rob</font><br><br><font size=3> Call Trace:</font><br><font size=3>? _Z11kSFSGetattrP15KernelOperationP13gpfsVfsData_tP10gpfsNode_tiP10cxiVattr_tP12gpfs_iattr64+0x1e4/0x5d0
[mmfs26]</font><br><font size=3> _ZL17refreshCacheAttrsP13gpfsVfsData_tP15KernelOperationP9cxiNode_tP10pcacheAttriPcj+0x441/0x450
[mmfs26]</font><br><font size=3> _Z21pcacheHandleCollisionP13gpfsVfsData_tP15KernelOperationP10gpfsNode_tS4_PcPvP9MMFSVInfoiP10pcacheAttriS5_10PcacheModej+0xa21/0x11b0
[mmfs26]</font><br><font size=3> ? _ZN6ThCond6signalEv+0x82/0x190 [mmfs26]</font><br><font size=3> ? _ZN10MemoryPool6shFreeEPv9MallocUse+0x1a5/0x2a0
[mmfs26]</font><br><font size=3> ? _ZL14kSFSPcacheSendP13gpfsVfsData_tP15KernelOperation7FileUIDS3_PciiPPv+0x387/0x570
[mmfs26]</font><br><font size=3> ? _ZL17pcacheNeedRefresh10PcacheModejlijj+0x206/0x230
[mmfs26]</font><br><font size=3>_Z12pcacheLookupP13gpfsVfsData_tP15KernelOperationP10gpfsNode_tPvPcP7FilesetjjjPS5_PS4_PyPjS9_+0x1dcf/0x25c0
[mmfs26]</font><br><font size=3>? _Z15findFilesetByIdP15KernelOperationjjPP7Filesetj+0x4f/0xa0
[mmfs26]</font><br><font size=3> _Z10gpfsLookupP13gpfsVfsData_tPvP9cxiNode_tS1_S1_PcjPS1_PS3_PyP10cxiVattr_tPjP10ext_cred_tjS5_PiS4_SD_+0x65c/0xad0
[mmfs26]</font><br><font size=3>gpfs_i_lookup+0x189/0x3f0 [mmfslinux]</font><br><font size=3> ? _Z8gpfsLinkP13gpfsVfsData_tP9cxiNode_tS2_PvPcjjP10ext_cred_t+0x6e0/0x6e0
[mmfs26]</font><br><font size=3> ? d_alloc_parallel+0x99/0x4a0</font><br><font size=3> ? _Z33gpfsIsCifsBypassTraversalCheckingv+0xe2/0x130
[mmfs26]</font><br><font size=3> __lookup_slow+0x97/0x150</font><br><font size=3> lookup_slow+0x35/0x50</font><br><font size=3> walk_component+0x1bf/0x330</font><br><font size=3> ? _ZL12gpfsGetattrxP13gpfsVfsData_tP9cxiNode_tP10cxiVattr_tP12gpfs_iattr64i+0x147/0x390
[mmfs26]</font><br><font size=3> path_lookupat.isra.49+0x75/0x200</font><br><font size=3> filename_lookup.part.63+0xa0/0x170</font><br><font size=3>? strncpy_from_user+0x4f/0x1b0</font><br><font size=3> vfs_statx+0x73/0xe0</font><br><font size=3> __do_sys_newlstat+0x39/0x70</font><br><font size=3> ? syscall_trace_enter+0x1d3/0x2c0</font><br><font size=3> ? __audit_syscall_exit+0x249/0x2a0</font><br><font size=3> do_syscall_64+0x5b/0x1a0</font><br><font size=3> entry_SYSCALL_64_after_hwframe+0x65/0xca</font><br><tt><font size=3>-- </font></tt><br><font size=3>Robert Horton | Research Data Storage Lead</font><br><font size=3>The Institute of Cancer Research | 237 Fulham Road | London
| SW3 6JB</font><br><font size=3>T +44 (0)20 7153 5350 | E </font><a href=mailto:robert.horton@icr.ac.uk><font size=3 color=blue><u>robert.horton@icr.ac.uk</u></font></a><font size=3>| W </font><a href=www.icr.ac.uk><font size=3>www.icr.ac.uk</font></a><font size=3>| Twitter @ICR_London</font><br><font size=3>Facebook: </font><a href=www.facebook.com/theinstituteofcancerresearch><font size=3 color=blue><u>www.facebook.com/theinstituteofcancerresearch</u></font></a><br><font size=3><br>The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company
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