a184d3fcde
Fix/remove three related flawed tests that attempted to cause OOM due to large request size and alignment constraint. Although these tests "passed" on 64-bit systems due to the virtual memory hole, they could pass on some 32-bit systems.
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
#include "test/jemalloc_test.h"
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#define CHUNK 0x400000
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/* #define MAXALIGN ((size_t)UINT64_C(0x80000000000)) */
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#define MAXALIGN ((size_t)0x2000000LU)
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#define NITER 4
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TEST_BEGIN(test_basic)
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{
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size_t nsz, rsz, sz;
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void *p;
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sz = 42;
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nsz = nallocx(sz, 0);
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assert_zu_ne(nsz, 0, "Unexpected nallocx() error");
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p = mallocx(sz, 0);
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assert_ptr_not_null(p, "Unexpected mallocx() error");
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rsz = sallocx(p, 0);
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assert_zu_ge(rsz, sz, "Real size smaller than expected");
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assert_zu_eq(nsz, rsz, "nallocx()/sallocx() size mismatch");
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dallocx(p, 0);
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p = mallocx(sz, 0);
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assert_ptr_not_null(p, "Unexpected mallocx() error");
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dallocx(p, 0);
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nsz = nallocx(sz, MALLOCX_ZERO);
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assert_zu_ne(nsz, 0, "Unexpected nallocx() error");
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p = mallocx(sz, MALLOCX_ZERO);
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assert_ptr_not_null(p, "Unexpected mallocx() error");
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rsz = sallocx(p, 0);
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assert_zu_eq(nsz, rsz, "nallocx()/sallocx() rsize mismatch");
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dallocx(p, 0);
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}
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TEST_END
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TEST_BEGIN(test_alignment_and_size)
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{
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size_t nsz, rsz, sz, alignment, total;
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unsigned i;
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void *ps[NITER];
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for (i = 0; i < NITER; i++)
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ps[i] = NULL;
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for (alignment = 8;
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alignment <= MAXALIGN;
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alignment <<= 1) {
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total = 0;
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for (sz = 1;
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sz < 3 * alignment && sz < (1U << 31);
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sz += (alignment >> (LG_SIZEOF_PTR-1)) - 1) {
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for (i = 0; i < NITER; i++) {
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nsz = nallocx(sz, MALLOCX_ALIGN(alignment) |
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MALLOCX_ZERO);
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assert_zu_ne(nsz, 0,
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"nallocx() error for alignment=%zu, "
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"size=%zu (%#zx)", alignment, sz, sz);
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ps[i] = mallocx(sz, MALLOCX_ALIGN(alignment) |
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MALLOCX_ZERO);
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assert_ptr_not_null(ps[i],
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"mallocx() error for alignment=%zu, "
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"size=%zu (%#zx)", alignment, sz, sz);
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rsz = sallocx(ps[i], 0);
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assert_zu_ge(rsz, sz,
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"Real size smaller than expected for "
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"alignment=%zu, size=%zu", alignment, sz);
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assert_zu_eq(nsz, rsz,
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"nallocx()/sallocx() size mismatch for "
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"alignment=%zu, size=%zu", alignment, sz);
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assert_ptr_null(
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(void *)((uintptr_t)ps[i] & (alignment-1)),
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"%p inadequately aligned for"
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" alignment=%zu, size=%zu", ps[i],
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alignment, sz);
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total += rsz;
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if (total >= (MAXALIGN << 1))
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break;
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}
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for (i = 0; i < NITER; i++) {
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if (ps[i] != NULL) {
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dallocx(ps[i], 0);
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ps[i] = NULL;
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}
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}
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}
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}
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}
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TEST_END
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int
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main(void)
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{
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return (test(
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test_basic,
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test_alignment_and_size));
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}
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