From bf24996d891966454b3395ab965b87c033b21d7d Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sat, 11 Jan 2025 12:25:15 +0100
Subject: libdiskfs: catch mmap failure

Just backtrace for now
---
 libdiskfs/io-read.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'libdiskfs/io-read.c')

diff --git a/libdiskfs/io-read.c b/libdiskfs/io-read.c
index a706d677..9ce06dde 100644
--- a/libdiskfs/io-read.c
+++ b/libdiskfs/io-read.c
@@ -61,6 +61,7 @@ diskfs_S_io_read (struct protid *cred,
     {
       ourbuf = 1;
       buf = mmap (0, maxread, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);     
+      assert_backtrace (buf != MAP_FAILED);
       *data = buf;
     }
   else
-- 
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