On 08/02/2016 11:38 PM, Srikar Dronamraju wrote: > * Dave Hansen <dave.hansen@xxxxxxxxx> [2016-08-02 11:09:21]: >> On 08/02/2016 06:19 AM, Srikar Dronamraju wrote: >>> Kernels compiled with CONFIG_DEFERRED_STRUCT_PAGE_INIT will initialise >>> only certain size memory per node. The certain size takes into account >>> the dentry and inode cache sizes. However such a kernel when booting a >>> secondary kernel will not be able to allocate the required amount of >>> memory to suffice for the dentry and inode caches. This results in >>> crashes like the below on large systems such as 32 TB systems. >> >> What's a "secondary kernel"? >> > I mean the kernel thats booted to collect the crash, On fadump, the > first kernel acts as the secondary kernel i.e the same kernel is booted > to collect the crash. OK, but I'm still not seeing what the problem is. You've said that it crashes and that it crashes during inode/dentry cache allocation. But, *why* does the same kernel image crash in when it is used as a "secondary kernel"? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>