Correct they some from IBM support. The AFM issue we have (and is fixed in the efix) is if you have client code running on the AFM cache that uses truncate. The AFM write coalescing processing does something funny with it, so the file isn't truncated and then the data you write afterwards isn't copied back to home.
We found this with ABAQUS code running on our HPC nodes onto the AFM cache, I.e. At home, the final packed output file from ABAQUS is corrupt as its the "untruncated and then filled" version of the file (so just a big blob of empty data). I would guess that anything using truncate would see the same issue. 4.2.3.x: APAR IV99796 See IBM Flash Alert at: http://www-01.ibm.com/support/docview.wss?uid=ssg1S1010629&myns=s033&mynp=O CSTXKQY&mynp=OCSWJ00&mync=E&cm_sp=s033-_-OCSTXKQY-OCSWJ00-_-E Its remedied in efix2, of course remember that an efix has not gone through a full testing validation cycle (otherwise it would be a PTF), but we have not seen any issues in our environments running 4.2.3.4efix2. Simon On 29/09/2017, 10:04, "gpfsug-discuss-boun...@spectrumscale.org on behalf of Sobey, Richard A" <gpfsug-discuss-boun...@spectrumscale.org on behalf of r.so...@imperial.ac.uk> wrote: >Efixes (in my one time only limited experience!) come direct from IBM as >a result of a PMR. >Richard > >-----Original Message----- >From: gpfsug-discuss-boun...@spectrumscale.org >[mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of John Hearns >Sent: 29 September 2017 10:02 >To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> >Subject: Re: [gpfsug-discuss] el7.4 compatibility > >Simon, >I would appreciate a heads up on that AFM issue. >I upgraded to 4.2.3.4 this morning, to deal with an AFM issue, which is >if a remote NFS mount goes down then an asynchronous operation such as a >read can be stopped. > >I must admit to being not clued up on how the efixes are distributed. I >downloaded the 4.2.3.4 installer for Linux yesterday. >Should I be searching for additional fix packs on top of that (which I am >in fact doing now). > >John H > > > > > >-----Original Message----- >From: gpfsug-discuss-boun...@spectrumscale.org >[mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of Simon >Thompson (IT Research Support) >Sent: Thursday, September 28, 2017 4:45 PM >To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> >Subject: Re: [gpfsug-discuss] el7.4 compatibility > > >Aren't listed as tested > >Sorry ... >4.2.3.4 we have used with 7.4 as well, efix2 includes a fix for an AFM >issue we have. > >Simon > >On 28/09/2017, 15:36, "kenneth.waege...@ugent.be" ><kenneth.waege...@ugent.be> wrote: > >> >> >>On 28/09/17 16:23, Simon Thompson (IT Research Support) wrote: >>> The 7.4 kernels are listed as having been tested by IBM. >>Hi, >> >>Were did you find this? >>> >>> Having said that, we have clients running 7.4 kernel and its OK, but >>> we are 4.2.3.4efix2, so bump versions... >>Do you have some information about the efix2? Is this for 7.4 ? And >>where should we find this :-) >> >>Thank you! >> >>Kenneth >> >>> >>> Simon >>> >>> On 28/09/2017, 15:18, "gpfsug-discuss-boun...@spectrumscale.org on >>>behalf of Jeffrey R. Lang" <gpfsug-discuss-boun...@spectrumscale.org >>>on behalf of jrl...@uwyo.edu> wrote: >>> >>>> I just tired to build the GPFS GPL module against the latest version >>>>of RHEL 7.4 kernel and the build fails. The link below show that it >>>>should work. >>>> >>>> cc kdump.o kdump-kern.o kdump-kern-dwarfs.o -o kdump -lpthread >>>> kdump-kern.o: In function `GetOffset': >>>> kdump-kern.c:(.text+0x9): undefined reference to `page_offset_base' >>>> kdump-kern.o: In function `KernInit': >>>> kdump-kern.c:(.text+0x58): undefined reference to `page_offset_base' >>>> collect2: error: ld returned 1 exit status >>>> make[1]: *** [modules] Error 1 >>>> make[1]: Leaving directory `/usr/lpp/mmfs/src/gpl-linux' >>>> make: *** [Modules] Error 1 >>>> -------------------------------------------------------- >>>> mmbuildgpl: Building GPL module failed at Thu Sep 28 08:12:14 MDT >>>>2017. >>>> -------------------------------------------------------- >>>> mmbuildgpl: Command failed. Examine previous error messages to >>>>determine cause. >>>> [root@bkupsvr3 ~]# >>>> [root@bkupsvr3 ~]# >>>> [root@bkupsvr3 ~]# >>>> [root@bkupsvr3 ~]# >>>> [root@bkupsvr3 ~]# uname -a >>>> Linux bkupsvr3.arcc.uwyo.edu 3.10.0-693.2.2.el7.x86_64 #1 SMP Sat >>>>Sep 9 >>>> 03:55:24 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux >>>> [root@bkupsvr3 ~]# mmdiag --version >>>> >>>> === mmdiag: version === >>>> Current GPFS build: "4.2.2.3 ". >>>> Built on Mar 16 2017 at 11:19:59 >>>> >>>> In order to use GPFS with RHEL 7.4 I have to use a 7.3 kernel. In >>>> my case 514.26.2 >>>> >>>> If I'm missing something can some one point me in the right direction? >>>> >>>> >>>> -----Original Message----- >>>> From: gpfsug-discuss-boun...@spectrumscale.org >>>> [mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of Bryan >>>> Banister >>>> Sent: Thursday, September 28, 2017 8:22 AM >>>> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> >>>> Subject: Re: [gpfsug-discuss] el7.4 compatibility >>>> >>>> Please review this site: >>>> >>>> >>>>https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww >>>>w.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2FSTXKQY%2Fgpfsclustersfaq >>>>.ht&data=01%7C01%7Cjohn.hearns%40asml.com%7C1c91f855bc124c31f81a08d50 >>>>67f949a%7Caf73baa8f5944eb2a39d93e96cad61fc%7C1&sdata=nK6KEzCD62kU3njL >>>>kIFKL69V3jyN836K5pHMX19tWk8%3D&reserved=0 >>>>ml >>>> >>>> Hope that helps, >>>> -Bryan >>>> >>>> -----Original Message----- >>>> From: gpfsug-discuss-boun...@spectrumscale.org >>>> [mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of >>>> greg.lehm...@csiro.au >>>> Sent: Wednesday, September 27, 2017 6:45 PM >>>> To: gpfsug-discuss@spectrumscale.org >>>> Subject: Re: [gpfsug-discuss] el7.4 compatibility >>>> >>>> Note: External Email >>>> ------------------------------------------------- >>>> >>>> I guess I may as well ask about SLES 12 SP3 as well! TIA. >>>> >>>> -----Original Message----- >>>> From: gpfsug-discuss-boun...@spectrumscale.org >>>> [mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of >>>> Kenneth Waegeman >>>> Sent: Wednesday, 27 September 2017 6:17 PM >>>> To: gpfsug-discuss@spectrumscale.org >>>> Subject: [gpfsug-discuss] el7.4 compatibility >>>> >>>> Hi, >>>> >>>> Is there already some information available of gpfs (and protocols) >>>> on >>>> el7.4 ? >>>> >>>> Thanks! >>>> >>>> Kenneth >>>> >>>> _______________________________________________ >>>> gpfsug-discuss mailing list >>>> gpfsug-discuss at spectrumscale.org >>>> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgp >>>> fsug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.h >>>> earns%40asml.com%7C1c91f855bc124c31f81a08d5067f949a%7Caf73baa8f5944e >>>> b2a39d93e96cad61fc%7C1&sdata=NFMrLpW8bakClzmF4zCC%2BUb2oi04Qw3N6cc2Y >>>> tqc6pw%3D&reserved=0 _______________________________________________ >>>> gpfsug-discuss mailing list >>>> gpfsug-discuss at spectrumscale.org >>>> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgp >>>> fsug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.h >>>> earns%40asml.com%7C1c91f855bc124c31f81a08d5067f949a%7Caf73baa8f5944e >>>> b2a39d93e96cad61fc%7C1&sdata=NFMrLpW8bakClzmF4zCC%2BUb2oi04Qw3N6cc2Y >>>> tqc6pw%3D&reserved=0 >>>> >>>> >>>> ________________________________ >>>> >>>> Note: This email is for the confidential use of the named >>>>addressee(s) only and may contain proprietary, confidential or >>>>privileged information. >>>> If you are not the intended recipient, you are hereby notified that >>>>any review, dissemination or copying of this email is strictly >>>>prohibited, and to please notify the sender immediately and destroy >>>>this email and any attachments. Email transmission cannot be >>>>guaranteed to be secure or error-free. The Company, therefore, does >>>>not make any guarantees as to the completeness or accuracy of this >>>>email or any attachments. This email is for informational purposes >>>>only and does not constitute a recommendation, offer, request or >>>>solicitation of any kind to buy, sell, subscribe, redeem or perform >>>>any type of transaction of a financial product. >>>> _______________________________________________ >>>> gpfsug-discuss mailing list >>>> gpfsug-discuss at spectrumscale.org >>>> >>>>https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpf >>>>sug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.hea >>>>rns%40asml.com%7C1c91f855bc124c31f81a08d5067f949a%7Caf73baa8f5944eb2a >>>>39d93e96cad61fc%7C1&sdata=NFMrLpW8bakClzmF4zCC%2BUb2oi04Qw3N6cc2Ytqc6 >>>>pw%3D&reserved=0 _______________________________________________ >>>> gpfsug-discuss mailing list >>>> gpfsug-discuss at spectrumscale.org >>>> >>>>https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpf >>>>sug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.hea >>>>rns%40asml.com%7C1c91f855bc124c31f81a08d5067f949a%7Caf73baa8f5944eb2a >>>>39d93e96cad61fc%7C1&sdata=NFMrLpW8bakClzmF4zCC%2BUb2oi04Qw3N6cc2Ytqc6 >>>>pw%3D&reserved=0 >>> _______________________________________________ >>> gpfsug-discuss mailing list >>> gpfsug-discuss at spectrumscale.org >>> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpf >>> sug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.hea >>> rns%40asml.com%7C1c91f855bc124c31f81a08d5067f949a%7Caf73baa8f5944eb2a >>> 39d93e96cad61fc%7C1&sdata=NFMrLpW8bakClzmF4zCC%2BUb2oi04Qw3N6cc2Ytqc6 >>> pw%3D&reserved=0 >> > >_______________________________________________ >gpfsug-discuss mailing list >gpfsug-discuss at spectrumscale.org >https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpfsug.o >rg%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.hearns%40asml >.com%7C1c91f855bc124c31f81a08d5067f949a%7Caf73baa8f5944eb2a39d93e96cad61fc >%7C1&sdata=NFMrLpW8bakClzmF4zCC%2BUb2oi04Qw3N6cc2Ytqc6pw%3D&reserved=0 >-- The information contained in this communication and any attachments is >confidential and may be privileged, and is for the sole use of the >intended recipient(s). Any unauthorized review, use, disclosure or >distribution is prohibited. Unless explicitly stated otherwise in the >body of this communication or the attachment thereto (if any), the >information is provided on an AS-IS basis without any express or implied >warranties or liabilities. To the extent you are relying on this >information, you are doing so at your own risk. If you are not the >intended recipient, please notify the sender immediately by replying to >this message and destroy all copies of this message and any attachments. >Neither the sender nor the company/group of companies he or she >represents shall be liable for the proper and complete transmission of >the information contained in this communication, or for any delay in its >receipt. >_______________________________________________ >gpfsug-discuss mailing list >gpfsug-discuss at spectrumscale.org >http://gpfsug.org/mailman/listinfo/gpfsug-discuss >_______________________________________________ >gpfsug-discuss mailing list >gpfsug-discuss at spectrumscale.org >http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
