diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2025-11-03 16:25:33 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2025-11-14 11:34:27 +0100 |
| commit | b60d126c8ea3444d8c1f29538542d5c03d219e3e (patch) | |
| tree | 4b28c97df06d64208e696e0540dae4c73b4a4bc8 /arch/s390/mm/fault.c | |
| parent | 76502abca219fc8579353458a12744587b7a281f (diff) | |
s390/mm: Let dump_fault_info() print additional information
Let dump_fault_info() print additional information to make debugging
easier:
Print "FSI" if the access-exception-fetch/store-indication facility is
installed. If it is installed the TEID may also indicate if an exception
happened because of a fetch or a store operation.
Print "SOP", "ESOP-1", or "ESOP-2" depending on the type of the installed
Suppression-on-Protection facility. This also gives additional information
about the validity and meaning of the TEID bits.
The output is changed from something like:
Failing address: 0000000000000000 TEID: 0000000000000803
to
Failing address: 0000000000000000 TEID: 0000000000000803 ESOP-2 FSI
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/mm/fault.c')
| -rw-r--r-- | arch/s390/mm/fault.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 639c4f610fdd..20804f1f781a 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -133,8 +133,17 @@ static void dump_fault_info(struct pt_regs *regs) union teid teid = { .val = regs->int_parm_long }; unsigned long asce; - pr_alert("Failing address: %016lx TEID: %016lx\n", + pr_alert("Failing address: %016lx TEID: %016lx", get_fault_address(regs), teid.val); + if (test_facility(131)) + pr_cont(" ESOP-2"); + else if (machine_has_esop()) + pr_cont(" ESOP-1"); + else + pr_cont(" SOP"); + if (test_facility(75)) + pr_cont(" FSI"); + pr_cont("\n"); pr_alert("Fault in "); switch (teid.as) { case PSW_BITS_AS_HOME: |