diff options
Diffstat (limited to 'usr/src/uts/intel/ia32/os/sundep.c')
| -rw-r--r-- | usr/src/uts/intel/ia32/os/sundep.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/usr/src/uts/intel/ia32/os/sundep.c b/usr/src/uts/intel/ia32/os/sundep.c index 34e0a03d68..8a5562f4ad 100644 --- a/usr/src/uts/intel/ia32/os/sundep.c +++ b/usr/src/uts/intel/ia32/os/sundep.c @@ -20,7 +20,7 @@ */ /* * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright 2019 Joyent, Inc. + * Copyright 2021 Joyent, Inc. */ /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ @@ -763,7 +763,7 @@ lwp_attach_brand_hdlrs(klwp_t *lwp) brand_interpositioning_disable, NULL) == 0); installctx(t, NULL, brand_interpositioning_disable, brand_interpositioning_enable, NULL, NULL, - brand_interpositioning_disable, NULL); + brand_interpositioning_disable, NULL, NULL); if (t == curthread) { kpreempt_disable(); @@ -829,6 +829,7 @@ lwp_installctx(klwp_t *lwp) #else void (*restop)(klwp_t *) = lwp_segregs_restore; #endif + struct ctxop *ctx; /* * Install the basic lwp context handlers on each lwp. @@ -844,10 +845,14 @@ lwp_installctx(klwp_t *lwp) */ ASSERT(removectx(t, lwp, lwp_segregs_save, restop, NULL, NULL, NULL, NULL) == 0); - if (thisthread) + if (thisthread) { + ctx = installctx_preallocate(); kpreempt_disable(); + } else { + ctx = NULL; + } installctx(t, lwp, lwp_segregs_save, restop, - NULL, NULL, NULL, NULL); + NULL, NULL, NULL, NULL, ctx); if (thisthread) { /* * Since we're the right thread, set the values in the GDT @@ -874,10 +879,14 @@ lwp_installctx(klwp_t *lwp) ASSERT(removectx(t, kstktop, sep_save, sep_restore, NULL, NULL, NULL, NULL) == 0); - if (thisthread) + if (thisthread) { + ctx = installctx_preallocate(); kpreempt_disable(); + } else { + ctx = NULL; + } installctx(t, kstktop, - sep_save, sep_restore, NULL, NULL, NULL, NULL); + sep_save, sep_restore, NULL, NULL, NULL, NULL, ctx); if (thisthread) { /* * We're the right thread, so set the stack pointer |