> -----Original Message----- > From: openwrt-devel [mailto:openwrt-devel-boun...@lists.openwrt.org] On > Behalf Of Alexander 'lynxis' Couzens > Sent: Mittwoch, 12. Februar 2020 13:02 > To: dw...@infradead.org > Cc: OpenWrt Development List <openwrt-devel@lists.openwrt.org> > Subject: [OpenWrt-Devel] jffs2 runs into read-only on low memory systems (5 > eblocks) > > Hi David, > > I'm currently working with low flash system (4MB flash / jffs2: 320 kb, > 5 erase blocks). > > Some of the systems seems to run into read-only mode, while most > work fine. I've around ~50 devices which is less than 5 %. My devices > runs 4.14 and ar71xx devices.
I'm used to that with OpenWrt-derived Freifunk firmware (non-Gluon), based on 4.9/ar71xx and 4.14/ar71xx. Same low probability, though I have no numbers. I have once tried to find a system in when the read-only occurs and when it doesn't, but I failed. Best Adrian > > I would guess the garbage collector triggers to late, when the last free > block has been allocated and moves itself into this situation. > > Are there any tools to debug this? Are there any tests tools available? > I've dumps of the broken flash. > > Any thoughts how to debug it further? > > Best, > lynxis > > -- > Alexander Couzens > > mail: lyn...@fe80.eu > jabber: lyn...@fe80.eu > gpg: 390D CF78 8BF9 AA50 4F8F F1E2 C29E 9DA6 A0DF 8604 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
