diff --git a/doc/bugs/Android_termux_install_fails_with_Bad_system_call.mdwn b/doc/bugs/Android_termux_install_fails_with_Bad_system_call.mdwn
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+Following the installation instructions for termux fails on multiple
+phones (including my own) with "Bad system call" when it comes to running
+git-annex.
+
+My guess as to what has happened is that the arm64 build has been updated
+to use a newer version of glibc etc, and that is trying to use a syscall
+that the Android kernel is too old to support. (Kernel 4.19 in my phone's
+case.)
+
+Unsure when it broke, but the arm64 build is built on Debian testing
+for whatever reason, so it's will need a reasonably recent kernel. Perhaps
+there should be an equivilant of the i386-ancient build for older arm64
+systems? arm64 has by now been around as long as the Debian jessie used for
+i386-ancient. --[[Joey]]
diff --git a/doc/forum/Android___34__Bad_system_call__34__/comment_2_74a33b262400ed74a7e0e3bbeac651d5._comment b/doc/forum/Android___34__Bad_system_call__34__/comment_2_74a33b262400ed74a7e0e3bbeac651d5._comment
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+++ b/doc/forum/Android___34__Bad_system_call__34__/comment_2_74a33b262400ed74a7e0e3bbeac651d5._comment
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+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 2"""
+ date="2023-03-06T16:44:33Z"
+ content="""
+Reproduced the same thing on my Pixel 5 with CalyxOS.
+
+My guess as to what has happened is that the arm64 build has been updated
+to use a newer version of glibc etc, and that is trying to use a syscall
+that the Android kernel is too old to support. (Kernel 4.19 in my phone's
+case.)
+
+I suggest you try the Nix-On-Droid installation method instead, if you
+don't really need to use termux.
+
+Opened a bug: [[bugs/Android_termux_install_fails_with_Bad_system_call]]
+"""]]