I had the following error message:
Backtrace:
0: /usr/bin/X(xf86SigHandler+0x81) [0x80c8631]
1: [0xffffe500]
Fatal server error:
Caught signal 11. Server aborting
No mention of nvidia. Although I do use the nvidia proprietary driver.
Downgrading to udev 0.105-4 solved the problem.
A strace of X revealed the reason for the crash:
> 13597 open("/dev/zero", O_RDWR) = 19
> 13597 mmap2(NULL, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 19,
> 0x2000) = -1 EPERM (Operation not permitted)
> 13597 close(19) = 0
> 13597 --- SIGSEGV (Segmentation fault) @ 0 (0) ---
With udev 0.105-4 the mmap succeeds.
The reason for EPERM is that the mmap call specifies PROT_EXEC but since
udev 0.113-1 /dev is mounted with the noexec mount option.
Piotr
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