diff --git a/libc/runtime/printargs.greg.c b/libc/runtime/printargs.greg.c
index 807a8297c..4f3fb22d1 100644
--- a/libc/runtime/printargs.greg.c
+++ b/libc/runtime/printargs.greg.c
@@ -18,6 +18,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/strace.internal.h"
+#include "libc/calls/struct/rlimit.h"
 #include "libc/calls/struct/sigset.h"
 #include "libc/calls/struct/termios.h"
 #include "libc/calls/struct/utsname.h"
@@ -49,6 +50,7 @@
 #include "libc/sysv/consts/auxv.h"
 #include "libc/sysv/consts/f.h"
 #include "libc/sysv/consts/poll.h"
+#include "libc/sysv/consts/rlim.h"
 #include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/termios.h"
 #include "tool/decode/lib/idname.h"
@@ -140,6 +142,7 @@ textstartup void __printargs(const char *prologue) {
   unsigned i, n;
   int e, x, flags;
   uintptr_t *auxp;
+  struct rlimit rlim;
   struct utsname uts;
   struct termios termios;
   struct AuxiliaryValue *auxinfo;
@@ -276,6 +279,17 @@ textstartup void __printargs(const char *prologue) {
     PRINT("  error: sigprocmask() failed %m");
   }
 
+  PRINT("");
+  PRINT("RESOURCE LIMITS");
+  for (i = 0; i < RLIM_NLIMITS; ++i) {
+    if (!getrlimit(i, &rlim)) {
+      if (rlim.rlim_cur == RLIM_INFINITY) rlim.rlim_cur = -1;
+      if (rlim.rlim_max == RLIM_INFINITY) rlim.rlim_max = -1;
+      PRINT(" ☼ %-20s %,16ld %,16ld", DescribeRlimitName(i), rlim.rlim_cur,
+            rlim.rlim_max);
+    }
+  }
+
   PRINT("");
   PRINT("ARGUMENTS (%p)", __argv);
   if (*__argv) {
diff --git a/libc/testlib/testmain.c b/libc/testlib/testmain.c
index 1e5b8f65e..ecfb75277 100644
--- a/libc/testlib/testmain.c
+++ b/libc/testlib/testmain.c
@@ -103,8 +103,9 @@ static void EmptySignalMask(void) {
 }
 
 static void FixIrregularFds(void) {
-  int i, fd;
-  struct pollfd pfds[64];
+  int i, fd, maxfds;
+  struct rlimit rlim;
+  struct pollfd *pfds;
   for (i = 0; i < 3; ++i) {
     if (fcntl(i, F_GETFL) == -1) {
       errno = 0;
@@ -115,7 +116,16 @@ static void FixIrregularFds(void) {
       }
     }
   }
-  for (i = 0; i < ARRAYLEN(pfds); ++i) {
+  if (IsWindows()) {
+    maxfds = 64;
+  } else {
+    maxfds = 256;
+    if (!getrlimit(RLIMIT_NOFILE, &rlim)) {
+      maxfds = MIN(maxfds, (uint64_t)rlim.rlim_cur);
+    }
+  }
+  pfds = malloc(maxfds * sizeof(struct pollfd));
+  for (i = 0; i < maxfds; ++i) {
     pfds[i].fd = i + 3;
     pfds[i].events = POLLIN;
   }
@@ -123,12 +133,13 @@ static void FixIrregularFds(void) {
     // TODO(jart): Fix Blinkenlights poll() / close()
     return;
   }
-  if (poll(pfds, ARRAYLEN(pfds), 0) != -1) {
-    for (i = 0; i < ARRAYLEN(pfds); ++i) {
+  if (poll(pfds, maxfds, 0) != -1) {
+    for (i = 0; i < maxfds; ++i) {
       if (pfds[i].revents & POLLNVAL) continue;
       CHECK_EQ(0, close(pfds[i].fd));
     }
   }
+  free(pfds);
 }
 
 static void SetLimit(int resource, uint64_t soft, uint64_t hard) {