manual, NEWS: Document malloc side effect of dynamic TLS changes

The increased malloc subsystem usage is a side effect of
commit d2123d68275acc0f061e73d5f86ca504e0d5a344 ("elf: Fix slow tls
access after dlopen [BZ #19924]").

Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index 4a11e9d..199f079 100644
--- a/NEWS
+++ b/NEWS
@@ -91,6 +91,12 @@ Deprecated and removed features, and other changes affecting compatibility:
   of GNU libc are advised to check whether their build processes can be
   simplified.
 
+* The dynamic linker calls the malloc and free functions in more cases
+  during TLS access if a shared object with dynamic TLS is loaded and
+  unloaded.  This can result in an infinite recursion if a malloc
+  replacement library or its dependencies use dynamic TLS instead of
+  initial-exec TLS.
+
 * The ia64*-*-linux-gnu configurations are no longer supported.
 
 Changes to build and runtime requirements: