https://bugzilla.kernel.org/show_bug.cgi?id=86471 --- Comment #6 from Markus Königshaus <m.koenigshaus@xxxxxx> --- I think I have found the error. The kernel calls apparently for the same page dec_zone_page_state on (page, NR_FILE_DIRTY) twice, which means that the dirty page counter underflows (is getting negative): cat /proc/meminfo MemTotal: 511492 kB MemFree: 406972 kB MemAvailable: 450536 kB Buffers: 1840 kB Cached: 52140 kB SwapCached: 0 kB Active: 54348 kB Inactive: 34456 kB Active(anon): 34904 kB Inactive(anon): 5440 kB Active(file): 19444 kB Inactive(file): 29016 kB Unevictable: 0 kB Mlocked: 0 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 511492 kB LowFree: 406972 kB SwapTotal: 0 kB SwapFree: 0 kB >> Dirty: 4294967148 kB Writeback: 0 kB AnonPages: 34844 kB Mapped: 13992 kB Shmem: 5520 kB Slab: 9196 kB SReclaimable: 4976 kB SUnreclaim: 4220 kB KernelStack: 696 kB PageTables: 1024 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 255744 kB Committed_AS: 365452 kB VmallocTotal: 499712 kB VmallocUsed: 3512 kB VmallocChunk: 495964 kB The writeback - mechanism thinks that too much pages are dirty and disables the writeback - cache. Who can I send this bug? Markus -- You are receiving this mail because: You are watching the assignee of the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
