Comments (7)
Can you run "nix-store --gc -vvvv"?
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Also, what platform is this?
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Do the following to reproduce this:
dd if=/dev/urandom of=/x
(this will exit when your file system is full)
Now do: $ nix-store --gc -vvvv
On my machine this gives no output other than the Bus error mentioned in my first message.
Platform: Ubuntu Precise, x86-64
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What Nix version is this? I've seen SQLite segfault if the disk is full, but Nix reserves some disk space (in /nix/var/nix/db/reserved) that it can delete prior to opening the SQLite DB for this reason.
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(Nix) 1.1
Have you actually followed my instructions?
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SIGBUS should come mainly from misaligned memory accesses. In x86-64, I think that can happen only using SIMD instructions that require aligned memory pointers with unaligned memory pointers. I don't think there is any SIMD in all what nix runs, apart from glibc's memset or memcpy, that should be properly protected about alignments.
Aragnon, can you disassemble in gdb at the sigbus location, and print 'info registers' to see what happened?
from nix.
Closing because I can't reproduce. If the reserved file doesn't exist and the disk is full, I get error: setting synchronous mode: disk I/O error
from SQLite.
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