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When a break-to-debugger is triggered, kdb will grab the console and vt(4) will generally switch back to ttyv0. If one issues a continue from the debugger, then kdb will ungrab the console and the system rolls on. This change adds a perhaps minor feature: when we're down to grab == 0 and if vt actually switched away to ttyv0, switch back to the tty it was previously on before the console was grabbed. The justification behind this is that a typical flow is to work in !ttyv0 to avoid console spam while occasionally dropping to ddb to inspect system state before returning. This could easily enough be tossed behind a sysctl or something if it's not generally appreciated, but I anticipate indifference. Reviewed by: ray Differential Revision: https://reviews.freebsd.org/D27110 |
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| .. | ||
| colors | ||
| font | ||
| hw | ||
| logo | ||
| vt.h | ||
| vt_buf.c | ||
| vt_consolectl.c | ||
| vt_core.c | ||
| vt_cpulogos.c | ||
| vt_font.c | ||
| vt_sysmouse.c | ||