1 files changed, 43 insertions, 0 deletions

diff --git a/issues/systems/tux04-disk-issues.gmi b/issues/systems/tux04-disk-issues.gmi
index bc6e1db..3df0a03 100644
--- a/issues/systems/tux04-disk-issues.gmi
+++ b/issues/systems/tux04-disk-issues.gmi
@@ -378,3 +378,46 @@ The code where it segfaulted is online at:
 => https://github.com/tianocore/edk2/blame/master/MdePkg/Library/BasePciSegmentLibPci/PciSegmentLib.c
 
 and has to do with PCI registers and that can actually be caused by the new PCIe card we hosted.
+
+# Sept 2025
+
+We moved production away from tux04, so now we should be able to work on this machine.
+
+
+## System crash on tux04
+
+And tux04 is down *again*. Wow, glad we moved off! I want to fix that machine and we had to move production off! I left the terminal open and the last message is:
+
+```
+tux04:~$ [SMM] APIC 0x00 S00:C00:T00 > ASSERT [AmdPlatformRasRsSmm] u:\EDK2\MdePkg\Library\BasePciSegmentLibPci\PciSegmentLib.c(766): ((Address) & (0xfffffffff0000000ULL | (3))) == 0
+!!!! X64 Exception Type - 03(#BP - Breakpoint)  CPU Apic ID - 00000000 !!!!
+RIP  - 0000000076DA4343, CS  - 0000000000000038, RFLAGS - 0000000000000002
+RAX  - 0000000000000010, RCX - 00000000770D5B58, RDX - 00000000000002F8
+RBX  - 0000000000000000, RSP - 0000000077773278, RBP - 0000000000000000
+RSI  - 0000000000000000, RDI - 00000000777733E0
+R8   - 00000000777731F8, R9  - 0000000000000000, R10 - 0000000000000000
+R11  - 00000000000000A0, R12 - 0000000000000000, R13 - 0000000000000000
+R14  - FFFFFFFFAC41A118, R15 - 000000000005B000
+DS   - 0000000000000020, ES  - 0000000000000020, FS  - 0000000000000020
+GS   - 0000000000000020, SS  - 0000000000000020
+CR0  - 0000000080010033, CR2 - 00007F67F5268030, CR3 - 0000000077749000
+CR4  - 0000000000001668, CR8 - 0000000000000001
+DR0  - 0000000000000000, DR1 - 0000000000000000, DR2 - 0000000000000000
+DR3  - 0000000000000000, DR6 - 00000000FFFF0FF0, DR7 - 0000000000000400
+GDTR - 000000007773C000 000000000000004F, LDTR - 0000000000000000
+IDTR - 0000000077761000 00000000000001FF,   TR - 0000000000000040
+FXSAVE_STATE - 0000000077772ED0
+!!!! Find image based on IP(0x76DA4343) u:\Build_Genoa\DellBrazosPkg\DEBUG_MYTOOLS\X64\DellPkgs\DellChipsetPkgs\AmdGenoaModulePkg\Override\AmdCpmPkg\Features\PlatformRas\Rs\Smm\AmdPlatformRasRsSmm\DEBUG\AmdPlatformRasRsSmm.pdb (ImageBase=0000000076D3E000, EntryPoint=0000000076D3E6C0) !!!!
+```
+
+and the racadm system log says
+
+```
+Record:      362
+Date/Time:   09/11/2025 21:47:02
+Source:      system
+Severity:    Critical
+Description: A high-severity issue has occurred at the Power-On Self-Test (POST) phase which has resulted in the system BIOS to abruptly stop functioning.
+```
+
+I have seen that before and it is definitely a hardware/driver issue on the Dell itself. I'll work on tha later. Luckily it always reboots.