| Message ID | 20231003192012.1674888-1-richard.henderson@linaro.org |
|---|---|
| Headers | show |
| Series | linux-user: Detect and report host crashes | expand |
Ping. On 10/3/23 12:20, Richard Henderson wrote: > More signal cleanups. Mostly tested by temporarily adding an > abort, divide by zero, undefined instruction, null dereference, > within the implementation of a guest syscall to induce an error. > > Changes for v5: > * Remap guest abort, which means we need to try less hard on > the host side to handle assertion failures. > * Drop the backtrace. Since backtrace_symbols only looks at the > dynamic symbol set, we don't much that's useful -- we still > need to use the debugger. > > > r~ > > > Helge Deller (1): > linux-user: Detect and report host crashes > > Richard Henderson (8): > linux-user: Split out die_with_signal > linux-user: Exit not abort in die_with_backtrace > linux-user: Only register handlers for core_dump_signal by default > linux-user: Map unsupported signals to an out-of-bounds value > linux-user: Simplify signal_init > linux-user: Split out host_sig{segv,bus}_handler > linux-user: Detect and report host SIGILL, SIGFPE, SIGTRAP > linux-user: Remap guest SIGABRT > > linux-user/signal.c | 452 +++++++++++++++++++++++++++++--------------- > 1 file changed, 296 insertions(+), 156 deletions(-) >
On 10/13/23 05:52, Richard Henderson wrote: > On 10/3/23 12:20, Richard Henderson wrote: >> More signal cleanups. Mostly tested by temporarily adding an >> abort, divide by zero, undefined instruction, null dereference, >> within the implementation of a guest syscall to induce an error. >> >> Changes for v5: >> * Remap guest abort, which means we need to try less hard on >> the host side to handle assertion failures. >> * Drop the backtrace. Since backtrace_symbols only looks at the >> dynamic symbol set, we don't much that's useful -- we still >> need to use the debugger. I've attached this series on git head and did some basic tests. My various chroots still work, and after adding some temporary code to trigger a segfault in qemu code it works as expected and reports the fault. So: Acked-by: Helge Deller <deller@gmx.de> Thank you! Helge
More signal cleanups. Mostly tested by temporarily adding an abort, divide by zero, undefined instruction, null dereference, within the implementation of a guest syscall to induce an error. Changes for v5: * Remap guest abort, which means we need to try less hard on the host side to handle assertion failures. * Drop the backtrace. Since backtrace_symbols only looks at the dynamic symbol set, we don't much that's useful -- we still need to use the debugger. r~ Helge Deller (1): linux-user: Detect and report host crashes Richard Henderson (8): linux-user: Split out die_with_signal linux-user: Exit not abort in die_with_backtrace linux-user: Only register handlers for core_dump_signal by default linux-user: Map unsupported signals to an out-of-bounds value linux-user: Simplify signal_init linux-user: Split out host_sig{segv,bus}_handler linux-user: Detect and report host SIGILL, SIGFPE, SIGTRAP linux-user: Remap guest SIGABRT linux-user/signal.c | 452 +++++++++++++++++++++++++++++--------------- 1 file changed, 296 insertions(+), 156 deletions(-)