Author: zbb Date: Tue Apr 18 10:20:42 2017 New Revision: 317084 URL: https://svnweb.freebsd.org/changeset/base/317084
Log: Reduce kmem_arena maximum size for Armada38x VM_KMEM_SIZE_MAX allows to limit kmem arena size. In our case this was necessary, as decreasing size of kmem_arena leaves more space for kernel_arena. kernel_arena is pool used for contigmalloc (in effect, DMA) allocations, which failed on Armada38x. This resulted in 'no memory errors' (e.g. USB_ERR_NOMEM errors) and failure of whole system. The need for greater size of kernel_arena probably comes from more peripherals making use of busdma. Value used as upper limit is half of the default value (0x1399a000). Submitted by: Wojciech Macek <[email protected]> Obtained from: Semihalf Sponsored by: Stormshield Differential revision: https://reviews.freebsd.org/D10216 Modified: head/sys/arm/conf/ARMADA38X Modified: head/sys/arm/conf/ARMADA38X ============================================================================== --- head/sys/arm/conf/ARMADA38X Tue Apr 18 09:27:26 2017 (r317083) +++ head/sys/arm/conf/ARMADA38X Tue Apr 18 10:20:42 2017 (r317084) @@ -21,6 +21,8 @@ options ROOTDEVNAME=\"/dev/da0s1a\" options SCHED_ULE # ULE scheduler options SMP +options VM_KMEM_SIZE_MAX=0x9CCD000 + # Pseudo devices device random device pty _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[email protected]"
