diff options
| author | jhb <jhb@FreeBSD.org> | 2000-09-13 18:21:33 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2000-09-13 18:21:33 +0000 |
| commit | b563a12289dac9d95d3d3590a4f228cad690e195 (patch) | |
| tree | 0c94a3346d7d53d668c058d5790a77bbab97a0ab /sys/alpha | |
| parent | b67788a71fcb672865141b1d73aa0f5f6faa0f6c (diff) | |
| download | FreeBSD-src-b563a12289dac9d95d3d3590a4f228cad690e195.zip FreeBSD-src-b563a12289dac9d95d3d3590a4f228cad690e195.tar.gz | |
Add back in obtaining/releasing Giant around interrupt handlers.
Diffstat (limited to 'sys/alpha')
| -rw-r--r-- | sys/alpha/alpha/interrupt.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/alpha/alpha/interrupt.c b/sys/alpha/alpha/interrupt.c index ef1c708..cb796c6 100644 --- a/sys/alpha/alpha/interrupt.c +++ b/sys/alpha/alpha/interrupt.c @@ -93,6 +93,7 @@ interrupt(a0, a1, a2, framep) struct proc* p = curproc; if (!p) p = &proc0; if ((caddr_t) framep < (caddr_t) p->p_addr + 1024) { + mtx_enter(&Giant, MTX_DEF); panic("possible stack overflow\n"); } } @@ -113,6 +114,7 @@ interrupt(a0, a1, a2, framep) return; } + mtx_enter(&Giant, MTX_DEF); cnt.v_intr++; #ifdef EVCNT_COUNTERS clock_intr_evcnt.ev_count++; @@ -125,24 +127,31 @@ interrupt(a0, a1, a2, framep) if((++schedclk2 & 0x7) == 0) statclock((struct clockframe *)framep); } + mtx_exit(&Giant, MTX_DEF); break; case ALPHA_INTR_ERROR: /* Machine Check or Correctable Error */ + mtx_enter(&Giant, MTX_DEF); a0 = alpha_pal_rdmces(); if (platform.mcheck_handler) (*platform.mcheck_handler)(a0, framep, a1, a2); else machine_check(a0, framep, a1, a2); + mtx_exit(&Giant, MTX_DEF); break; case ALPHA_INTR_DEVICE: /* I/O device interrupt */ + mtx_enter(&Giant, MTX_DEF); cnt.v_intr++; if (platform.iointr) (*platform.iointr)(framep, a1); + mtx_exit(&Giant, MTX_DEF); break; case ALPHA_INTR_PERF: /* interprocessor interrupt */ + mtx_enter(&Giant, MTX_DEF); perf_irq(a1, framep); + mtx_exit(&Giant, MTX_DEF); break; case ALPHA_INTR_PASSIVE: @@ -152,6 +161,7 @@ interrupt(a0, a1, a2, framep) break; default: + mtx_enter(&Giant, MTX_DEF); panic("unexpected interrupt: type 0x%lx vec 0x%lx a2 0x%lx\n", a0, a1, a2); /* NOTREACHED */ |
