Re: [Crash-utility] [PATCH 4/5] diskname, zram: Notify necessity of loading zram module

By the previous commit, trying to read swapped-out-into-zram-disk pages results in inaccessible memory error that is apparently irrelevant to zram and users cannot find it necessary to load zram module. Thus, let's add a warning message to indicate that. Signed-off-by: HATAYAMA Daisuke <d.hatayama(a)fujitsu.com&gt; --- diskdump.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/diskdump.c b/diskdump.c index 304e9a1..cdbc2d5 100644 --- a/diskdump.c +++ b/diskdump.c @@ -2751,8 +2751,13 @@ try_zram_decompress(ulonglong pte_val, unsigned char *buf, ulong len, ulonglong if (INVALID_MEMBER(zram_compressor)) { zram_init(); - if (INVALID_MEMBER(zram_compressor)) + if (INVALID_MEMBER(zram_compressor)) { + error(WARNING, + "Some pages are swapped out to zram. " + "Please load zram module.\n", + name);