jffs2: stack dump on sync
Frank Mori Hess
fmh6jj at gmail.com
Wed Nov 8 16:07:14 PST 2017
Hi, I'm using kernel 4.1.17 and I noticed jffs2 dumping stacktraces on
sync, as reported here:
https://patchwork.ozlabs.org/patch/298933/#689224
As far as I can tell, this has not been fixed in newer versions
although I haven't tested them. It seems the problem occurs when
CONFIG_JFFS2_FS_WRITEBUFFER is enabled, which causes jffs2_sync_fs()
in jffs2/super.c to call
cancel_delayed_work_sync(&c->wbuf_dwork);
However, wbuf_dwork is generally not initialized, producing the stack dump.
--
Frank
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