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Fixed sched_setaffinity(2) to correctly pass size.

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Second argument (cpusetsize) is size in bytes, not in bits.  Previously
used constant 32 resulted in reading of uninitialized memory and caused
EINVAL to be returned on some Linux kernels.
This commit is contained in:
Maxim Dounin 2012-01-16 11:13:48 +00:00
parent 9572920af0
commit b904676b5e
1 changed files with 4 additions and 1 deletions
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5
src/os/unix/ngx_process_cycle.c
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@ -914,7 +914,10 @@ ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
"sched_setaffinity(0x%08Xl)", cpu_affinity); "sched_setaffinity(0x%08Xl)", cpu_affinity);
if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) { if (sched_setaffinity(0, sizeof(cpu_affinity),
(cpu_set_t *) &cpu_affinity)
== -1)
{
ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
"sched_setaffinity(0x%08Xl) failed", cpu_affinity); "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
} }