Segmentation fault on Arch Linux

[pipo233]

Makemkv is also not working on my xfce manjaro dmesg spits out this:

Code: Select all

sudo dmesg | grep makemkv
[sudo] password for ed: 
[ 1995.307020] makemkvcon[3256]: segfault at 7fbf3cdb4000 ip 00007fbf3cdb4000 sp 00007fbf3ccd1e48 error 15 in zero[7fbf3ccd4000+e1000]
[ 1995.307067] audit: type=1701 audit(1660830689.776:131): auid=1000 uid=1000 gid=1001 ses=2 subj==unconfined pid=3252 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
[ 2053.510650] makemkvcon[3333]: segfault at 7f82988a1000 ip 00007f82988a1000 sp 00007f8293ffde28 error 15 in zero[7f82987c1000+e1000]
[ 2053.510704] audit: type=1701 audit(1660830747.980:167): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=3331 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
[ 2099.272601] makemkvcon[3407]: segfault at 7fdb37416000 ip 00007fdb37416000 sp 00007fdb37333e28 error 15 in zero[7fdb37336000+e1000]
[ 2099.272651] audit: type=1701 audit(1660830793.746:176): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=3405 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1

And this is in journalctl:

Code: Select all

journalctl | grep makemkv
jun 27 21:56:16 ed-ms7b98 polkitd[410]: Operator of unix-session:1 successfully authenticated as unix-user:ed to gain TEMPORARY authorization for action org.manjaro.pamac.commit for system-bus-name::1.149 [pamac-installer /media/Software/Manjaro/Apps/MakeMKV/makemkv-1.16.5-1-x86_64.pkg.tar.xz] (owned by unix-user:ed)
jun 27 21:56:42 ed-ms7b98 makemkv[30581]: info string reallocated, size=571
jun 27 21:56:54 ed-ms7b98 makemkv[30581]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1129, resource id: 8902871, major code: 40 (TranslateCoords), minor code: 0
jun 28 11:05:14 ed-ms7b98 makemkv[14222]: info string reallocated, size=571
jun 28 11:12:32 ed-ms7b98 makemkv[898]: info string reallocated, size=571
jun 28 11:12:49 ed-ms7b98 makemkv[898]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1843, resource id: 10501851, major code: 40 (TranslateCoords), minor code: 0
jun 28 11:19:26 ed-ms7b98 makemkv[910]: info string reallocated, size=571
jul 15 09:36:40 ed-ms7b98 makemkv[13115]: info string reallocated, size=571
aug 11 19:42:01 ed-ms7b98 makemkv[1732]: info string reallocated, size=571
aug 11 19:42:01 ed-ms7b98 audit[1735]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=1735 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 11 19:42:01 ed-ms7b98 kernel: makemkvcon[1737]: segfault at 7f7243228000 ip 00007f7243228000 sp 00007f7243145e28 error 15 in zero[7f7243148000+e1000]
aug 11 19:42:01 ed-ms7b98 kernel: audit: type=1701 audit(1660239721.877:78): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=1735 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 11 19:42:02 ed-ms7b98 systemd-coredump[1753]: Process 1735 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id 530e8c9dbb9fd945b180411ec86cf2c52152e056
                                                  Module makemkvcon with build-id 1da905bfb5f3c769
aug 11 19:42:21 ed-ms7b98 makemkv[1777]: info string reallocated, size=571
aug 11 19:42:21 ed-ms7b98 audit[1780]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=1780 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 11 19:42:21 ed-ms7b98 kernel: makemkvcon[1782]: segfault at 7ff26a613000 ip 00007ff26a613000 sp 00007ff26a530e28 error 15 in zero[7ff26a533000+e1000]
aug 11 19:42:21 ed-ms7b98 kernel: audit: type=1701 audit(1660239741.461:87): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=1780 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 11 19:42:21 ed-ms7b98 systemd-coredump[1798]: Process 1780 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id 530e8c9dbb9fd945b180411ec86cf2c52152e056
                                                  Module makemkvcon with build-id 1da905bfb5f3c769
aug 12 17:03:07 ed-ms7b98 makemkv[16209]: info string reallocated, size=571
aug 12 17:03:08 ed-ms7b98 audit[16212]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=16212 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 12 17:03:08 ed-ms7b98 kernel: makemkvcon[16214]: segfault at 7f1f7356f000 ip 00007f1f7356f000 sp 00007f1f7348ce28 error 15 in zero[7f1f7348f000+e1000]
aug 12 17:03:08 ed-ms7b98 kernel: audit: type=1701 audit(1660316588.366:117): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=16212 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 12 17:03:08 ed-ms7b98 systemd-coredump[16230]: Process 16212 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id 530e8c9dbb9fd945b180411ec86cf2c52152e056
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 12 17:03:39 ed-ms7b98 audit[16280]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=16280 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 12 17:03:39 ed-ms7b98 kernel: makemkvcon[16282]: segfault at 7f9ccdf61000 ip 00007f9ccdf61000 sp 00007f9ccde7ee28 error 15 in zero[7f9ccde81000+e1000]
aug 12 17:03:39 ed-ms7b98 kernel: audit: type=1701 audit(1660316619.037:126): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=16280 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 12 17:03:39 ed-ms7b98 systemd-coredump[16298]: Process 16280 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id 530e8c9dbb9fd945b180411ec86cf2c52152e056
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 13 11:10:23 ed-ms7b98 audit[27534]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=27534 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 13 11:10:23 ed-ms7b98 kernel: makemkvcon[27536]: segfault at 7f9590c8f000 ip 00007f9590c8f000 sp 00007f9590bace28 error 15 in zero[7f9590baf000+e1000]
aug 13 11:10:23 ed-ms7b98 kernel: audit: type=1701 audit(1660381823.474:165): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=27534 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 13 11:10:23 ed-ms7b98 systemd-coredump[27554]: Process 27534 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id 530e8c9dbb9fd945b180411ec86cf2c52152e056
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 13 11:26:36 ed-ms7b98 audit[34605]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=34605 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 13 11:26:36 ed-ms7b98 kernel: makemkvcon[34607]: segfault at 7fce61da8000 ip 00007fce61da8000 sp 00007fce61cc5e28 error 15 in zero[7fce61cc8000+e1000]
aug 13 11:26:36 ed-ms7b98 kernel: audit: type=1701 audit(1660382796.969:176): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=34605 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 13 11:26:37 ed-ms7b98 systemd-coredump[34623]: Process 34605 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id 59395d622631e47d87da3f11a8ff120f1ed3b7c6
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 13 11:27:11 ed-ms7b98 audit[34652]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=34652 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 13 11:27:11 ed-ms7b98 kernel: makemkvcon[34654]: segfault at 7f10c8417000 ip 00007f10c8417000 sp 00007f10c3ffde28 error 15 in zero[7f10c8337000+e1000]
aug 13 11:27:11 ed-ms7b98 kernel: audit: type=1701 audit(1660382831.077:185): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=34652 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 13 11:27:11 ed-ms7b98 systemd-coredump[34670]: Process 34652 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id 59395d622631e47d87da3f11a8ff120f1ed3b7c6
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 17 13:19:44 ed-ms7b98 audit[60580]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=60580 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 17 13:19:44 ed-ms7b98 kernel: makemkvcon[60582]: segfault at 7fcf44be7000 ip 00007fcf44be7000 sp 00007fcf44b04e28 error 15 in zero[7fcf44b07000+e1000]
aug 17 13:19:44 ed-ms7b98 kernel: audit: type=1701 audit(1660735184.908:267): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=60580 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 17 13:19:45 ed-ms7b98 systemd-coredump[60599]: Process 60580 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id 59395d622631e47d87da3f11a8ff120f1ed3b7c6
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 17 13:22:06 ed-ms7b98 audit[68178]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=68178 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 17 13:22:06 ed-ms7b98 kernel: makemkvcon[68180]: segfault at 7f5a789ed000 ip 00007f5a789ed000 sp 00007f5a7890ae28 error 15 in zero[7f5a7890d000+e1000]
aug 17 13:22:06 ed-ms7b98 kernel: audit: type=1701 audit(1660735326.795:278): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=68178 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 17 13:22:06 ed-ms7b98 systemd-coredump[68196]: Process 68178 (makemkvcon) of user 1000 dumped core.
                                                   Module libmakemkv.so.1 with build-id acf4776db8bddafb552b6ab48a5ff30dd23d5362
                                                   Module makemkvcon with build-id 1da905bfb5f3c769
aug 17 22:37:16 ed-ms7b98 makemkv[5556]: info string reallocated, size=571
aug 17 22:37:16 ed-ms7b98 audit[5559]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=5559 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 17 22:37:16 ed-ms7b98 kernel: makemkvcon[5561]: segfault at 7ff34c419000 ip 00007ff34c419000 sp 00007ff347ffde28 error 15 in zero[7ff34c339000+e1000]
aug 17 22:37:16 ed-ms7b98 kernel: audit: type=1701 audit(1660768636.578:122): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=5559 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 17 22:37:16 ed-ms7b98 systemd-coredump[5577]: Process 5559 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id acf4776db8bddafb552b6ab48a5ff30dd23d5362
                                                  Module makemkvcon with build-id 1da905bfb5f3c769
aug 18 15:51:29 ed-ms7b98 audit[3252]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=2 subj==unconfined pid=3252 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:51:29 ed-ms7b98 kernel: makemkvcon[3256]: segfault at 7fbf3cdb4000 ip 00007fbf3cdb4000 sp 00007fbf3ccd1e48 error 15 in zero[7fbf3ccd4000+e1000]
aug 18 15:51:29 ed-ms7b98 kernel: audit: type=1701 audit(1660830689.776:131): auid=1000 uid=1000 gid=1001 ses=2 subj==unconfined pid=3252 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:51:29 ed-ms7b98 systemd-coredump[3258]: Process 3252 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id acf4776db8bddafb552b6ab48a5ff30dd23d5362
                                                  Module makemkvcon with build-id 1da905bfb5f3c769
aug 18 15:51:30 ed-ms7b98 audit[3292]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=2 subj==unconfined pid=3292 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:51:30 ed-ms7b98 systemd-coredump[3300]: Process 3292 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id acf4776db8bddafb552b6ab48a5ff30dd23d5362
                                                  Module makemkvcon with build-id 1da905bfb5f3c769
aug 18 15:52:27 ed-ms7b98 audit[3331]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=3331 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:52:27 ed-ms7b98 kernel: makemkvcon[3333]: segfault at 7f82988a1000 ip 00007f82988a1000 sp 00007f8293ffde28 error 15 in zero[7f82987c1000+e1000]
aug 18 15:52:27 ed-ms7b98 kernel: audit: type=1701 audit(1660830747.980:167): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=3331 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:52:28 ed-ms7b98 systemd-coredump[3351]: Process 3331 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id acf4776db8bddafb552b6ab48a5ff30dd23d5362
                                                  Module makemkvcon with build-id 1da905bfb5f3c769
aug 18 15:53:13 ed-ms7b98 audit[3405]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=3405 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:53:13 ed-ms7b98 kernel: makemkvcon[3407]: segfault at 7fdb37416000 ip 00007fdb37416000 sp 00007fdb37333e28 error 15 in zero[7fdb37336000+e1000]
aug 18 15:53:13 ed-ms7b98 kernel: audit: type=1701 audit(1660830793.746:176): auid=1000 uid=1000 gid=1001 ses=1 subj==unconfined pid=3405 comm="makemkvcon" exe="/usr/bin/makemkvcon" sig=11 res=1
aug 18 15:53:13 ed-ms7b98 systemd-coredump[3423]: Process 3405 (makemkvcon) of user 1000 dumped core.
                                                  Module libmakemkv.so.1 with build-id acf4776db8bddafb552b6ab48a5ff30dd23d5362
                                                  Module makemkvcon with build-id 1da905bfb5f3c769

@mike: maybe this will help you fix the problem?

[4wheels]

Just want to register that I too am affected by this. MakeMKV just crashes on startup now...

[chowbok]

I don't think people just posting that they have the problem also is very helpful. I imagine Mike will get the idea at this point.

[4wheels]

I don't think people just posting that they have the problem also is very helpful. I imagine Mike will get the idea at this point.

In my view, it doesn't make sense to simply assume what Mike knows.
I've learned that assumptions in general cause more problems than they solve.

While people simply posting that they are affected may not seem like it helps, it gives Mike a sense for how many of his customers are affected, which can tangentially help reach a solution down the road.

[timeshifter]

I don't think people just posting that they have the problem also is very helpful. I imagine Mike will get the idea at this point.

Until this project uses a proper platform to manage communications that can differentiate between general issues like documentation or "this specific disc isn't properly recognized" and technical issues like this, this is the only way to report problems. I would love an issue tracker and even a way to submit pull requests for the open part of the code, or whatever.

There is no value in "a few people reported a problem so the developer gets the idea, so just wait". That's just silly. In 2022 we have decades of precedence for how to manage open(ish) projects. If all we have is phpBB, then I would encourage anyone having this problem to post it, since that is the only way to provide feedback.

Maybe that will prompt Mike to move this project into the 21st century where the community can actually help with the project instead of being helpless.

[mikewilzn]

I don't think people just posting that they have the problem also is very helpful. I imagine Mike will get the idea at this point.

Until this project uses a proper platform to manage communications that can differentiate between general issues like documentation or "this specific disc isn't properly recognized" and technical issues like this, this is the only way to report problems. I would love an issue tracker and even a way to submit pull requests for the open part of the code, or whatever.

There is no value in "a few people reported a problem so the developer gets the idea, so just wait". That's just silly. In 2022 we have decades of precedence for how to manage open(ish) projects. If all we have is phpBB, then I would encourage anyone having this problem to post it, since that is the only way to provide feedback.

Maybe that will prompt Mike to move this project into the 21st century where the community can actually help with the project instead of being helpless.

Yeah. Of all the software I wish was totally open source, this is at the top of the list. I don't understand why it isn't, when he essentially makes it free anyway. Ironically I'd totally donate $50 to the project if it was open source. But no way I'm paying money for something that could disappear in a day and my money would be lost. The glory of open source is great projects that are abandoned almost always get forked and revived.

[TylerDurden]

I don't think people just posting that they have the problem also is very helpful. I imagine Mike will get the idea at this point.

Until this project uses a proper platform to manage communications that can differentiate between general issues like documentation or "this specific disc isn't properly recognized" and technical issues like this, this is the only way to report problems. I would love an issue tracker and even a way to submit pull requests for the open part of the code, or whatever.

There is no value in "a few people reported a problem so the developer gets the idea, so just wait". That's just silly. In 2022 we have decades of precedence for how to manage open(ish) projects. If all we have is phpBB, then I would encourage anyone having this problem to post it, since that is the only way to provide feedback.

Maybe that will prompt Mike to move this project into the 21st century where the community can actually help with the project instead of being helpless.

Yeah. Of all the software I wish was totally open source, this is at the top of the list. I don't understand why it isn't, when he essentially makes it free anyway. Ironically I'd totally donate $50 to the project if it was open source. But no way I'm paying money for something that could disappear in a day and my money would be lost. The glory of open source is great projects that are abandoned almost always get forked and revived.

100% ACK
First of all I want to say hello to this community. I only registered to let the developer know, that I can confirm this bug under Arch Linux.

[mwoliver]

Me too, Mnajaro/XFCE, glibc 2.36-2, same as @pipo233.

While a bit off-topic, I do echo the sentiments of others who'd donate (even beyond the license I purchased on 2015-05-04) to see this fully opened and with a proper bug/issue tracker. I can only imagine the leaps and bounds that this tool would make with community contributions...

[timeshifter]

Ironically I'd totally donate $50 to the project if it was open source. But no way I'm paying money for something that could disappear in a day and my money would be lost.

Go ahead and buy a license - it's worth it. If the project disappeared tomorrow, your money would not be lost, because you would be rewarding the project for whatever benefit it has already brought you. Think of it as an act of gratitude, not an investment in the future.

That said, while I am extremely grateful for this project, I also find the status quo extremely frustrating. That's why I occasionally make some noise while trying not to be a complete dick about it. This tool is simultaneously one of the most useful and most frustrating I have ever encountered.

[pipo233]

You all have valid points about this project not being open source
It would be great if this project goes to github or others and have a proper issue tracker.

But i think that mike deliberate keeps everything to himself for legal punishments? makemkv isn't exactly legal so that may be the reason?

[timeshifter]

You all have valid points about this project not being open source
It would be great if this project goes to github or others and have a proper issue tracker.

But i think that mike deliberate keeps everything to himself for legal punishments? makemkv isn't exactly legal so that may be the reason?

I don't need the project to be fully open-source (though I would be happy if there were a contingency plan should things go south). I'm happy with the secret-sauce binary blob model as long as it doesn't spy on me or goes fallow. I understand the "first rule of fight club" nature of the project. That's important to consider. But my guess is most people interested in this project just want to view their media in a modern way that doesn't include putting a disc in the BD player to view a movie or tv show. I don't want to start a piracy farm or whatever, I just want to view the stuff I have legitimate access to (and it is legitimate) in a modern setting.

That is the real value of this project. I just want to use the media I have available to me by legitimate means in a way that is convenient to me. So I don't know why it has to be so painful.

[4wheels]

I suppose I'm a bit strange. I don't mind using my discs to view my media -- and I actually prefer that rather than using tons of disk space. For me, the value of MakeMKV is the ability to watch my BD discs on Linux, since every other method I tried failed miserably. Ripping the discs is an added bonus, plus the ability to view the titles/chapters for discs that play out of order sans menus.

What I'm concerned about now is that there hasn't been a response or acknowledgement since glibc 2.36. I completely understand that these things take time to fix... I'm fine with that, but a simple "Hey I'm aware of the issue and am working on it" would go a long way.
Did I flush $60 down the toilet? I sure hope not.

[chowbok]

Yeah, it is frustrating that we've spent money on this and get less response than most completely-free projects would give us. Also it's a little annoying that Mike has been (slightly) active on the boards since I reported this issue, so it's not like he's dealing with some personal issue that's taking all of his time. Like you say, just an acknowledgement would be nice.

[TomB19]

Is there a work around, such as running a different distribution and/or version in a VM?

[mwoliver]

Is there a work around, such as running a different distribution and/or version in a VM?

The guys over here seem to indicate that flatpak, snap, and even downgrades of glibc are workable (for them) options.