Hi guys, Both r269963 and r269964 have broken the MIPS platforms with smaller amounts of RAM (< 64MB.)
Sean noticed it and filed a bug: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193465 Can we please figure out what changed? Otherwise I'm going to revert these two changes until we figure out what happened. Thanks, -a On 13 August 2014 22:31, Xin LI <delp...@freebsd.org> wrote: > Author: delphij > Date: Thu Aug 14 05:31:39 2014 > New Revision: 269964 > URL: http://svnweb.freebsd.org/changeset/base/269964 > > Log: > Add a new loader tunable, vm.kmem_zmax which allows a system administrator > to limit the maximum allocation size that malloc(9) would consider using > the UMA cache allocator as backend. > > Suggested by: alfred > MFC after: 2 weeks > > Modified: > head/sys/kern/kern_malloc.c > > Modified: head/sys/kern/kern_malloc.c > ============================================================================== > --- head/sys/kern/kern_malloc.c Thu Aug 14 05:13:24 2014 (r269963) > +++ head/sys/kern/kern_malloc.c Thu Aug 14 05:31:39 2014 (r269964) > @@ -172,6 +172,10 @@ u_long vm_kmem_size; > SYSCTL_ULONG(_vm, OID_AUTO, kmem_size, CTLFLAG_RDTUN, &vm_kmem_size, 0, > "Size of kernel memory"); > > +static u_long kmem_zmax = KMEM_ZMAX; > +SYSCTL_ULONG(_vm, OID_AUTO, kmem_zmax, CTLFLAG_RDTUN, &kmem_zmax, 0, > + "Maximum allocation size that malloc(9) would use UMA as backend"); > + > static u_long vm_kmem_size_min; > SYSCTL_ULONG(_vm, OID_AUTO, kmem_size_min, CTLFLAG_RDTUN, &vm_kmem_size_min, > 0, > "Minimum size of kernel memory"); > @@ -485,7 +489,7 @@ malloc(unsigned long size, struct malloc > size = redzone_size_ntor(size); > #endif > > - if (size <= KMEM_ZMAX) { > + if (size <= kmem_zmax) { > mtip = mtp->ks_handle; > if (size & KMEM_ZMASK) > size = (size & ~KMEM_ZMASK) + KMEM_ZBASE; > @@ -776,6 +780,9 @@ mallocinit(void *dummy) > > uma_startup2(); > > + if (kmem_zmax < PAGE_SIZE || kmem_zmax > KMEM_ZMAX) > + kmem_zmax = KMEM_ZMAX; > + > mt_zone = uma_zcreate("mt_zone", sizeof(struct malloc_type_internal), > #ifdef INVARIANTS > mtrash_ctor, mtrash_dtor, mtrash_init, mtrash_fini, > @@ -800,7 +807,7 @@ mallocinit(void *dummy) > } > for (;i <= size; i+= KMEM_ZBASE) > kmemsize[i >> KMEM_ZSHIFT] = indx; > - > + > } > } > SYSINIT(kmem, SI_SUB_KMEM, SI_ORDER_SECOND, mallocinit, NULL); > _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
