Same bug on a Pi 3B running Ubuntu 20.04 arm64.
https://www.reddit.com/r/RTLSDR/comments/ds73ow/rtl_process_being_killed_newbie_troubleshooting/f6ynsaw/
proposes a patch for this bug:
> Reason for this is a bug in librtlsdr. It detects a kernel/hw whithout
mmap bug, but crashes in code that uses it. I have made a quickpatch for
this.
--- rtl-sdr-0.6.orig/src/librtlsdr.c +++ rtl-sdr-0.6/src/librtlsdr.c
@@ -1748,7 +1748,7 @@ static int _rtlsdr_alloc_async_buffers(r
dev->xfer_buf = malloc(dev->xfer_buf_num * sizeof(unsigned char *));
memset(dev->xfer_buf, 0, dev->xfer_buf_num * sizeof(unsigned char *));
-#if defined (__linux__) && LIBUSB_API_VERSION >= 0x01000105
+#if defined (__linux__) && LIBUSB_API_VERSION >= 0x01000105 && 0
fprintf(stderr, "Allocating %d zero-copy buffers\n", dev->xfer_buf_num);
dev->use_zerocopy = 1;
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https://bugs.launchpad.net/bugs/1876624
Title:
rtl apps crash "allocating zero-copy buffers", Pi 4, Ubuntu 20.04
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