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| author | Andreas Sandberg <andreas@sandberg.pp.se> | 2013-06-03 13:38:59 +0200 |
|---|---|---|
| committer | Andreas Sandberg <andreas@sandberg.pp.se> | 2013-06-03 13:38:59 +0200 |
| commit | 15f81b6ed9a2bc9821c90a4058b7b528e001a10f (patch) | |
| tree | 58d6aa25eb6edef0b794ffd310790ec0844ebad9 | |
| parent | 743f80712e08f02f7b3a9a286550e2635104f714 (diff) | |
| download | gem5-15f81b6ed9a2bc9821c90a4058b7b528e001a10f.tar.xz | |
kvm: Add handling of EAGAIN when creating timers
timer_create can apparently return -1 and set errno to EAGAIN if the
kernel suffered a temporary failure when allocating a timer. This
happens from time to time, so we need to handle it.
| -rw-r--r-- | src/cpu/kvm/timer.cc | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/cpu/kvm/timer.cc b/src/cpu/kvm/timer.cc index e1f74a552..03cdea6fb 100644 --- a/src/cpu/kvm/timer.cc +++ b/src/cpu/kvm/timer.cc @@ -59,8 +59,11 @@ PosixKvmTimer::PosixKvmTimer(int signo, clockid_t clockID, sev.sigev_notify = SIGEV_SIGNAL; sev.sigev_signo = signo; sev.sigev_value.sival_ptr = NULL; - if (timer_create(clockID, &sev, &timer) == -1) - panic("timer_create"); + + while (timer_create(clockID, &sev, &timer) == -1) { + if (errno != EAGAIN) + panic("timer_create: %i", errno); + } } PosixKvmTimer::~PosixKvmTimer() |