I believe you can see this issue with any NIC. (Invalid value being returned from var_arg). It does not not always crash, but the value is always wrong.
On Thu, May 23, 2019 at 6:58 PM Damjan Marion <dmar...@me.com> wrote: > > > > On 23 May 2019, at 15:21, siddarth rai <sid...@gmail.com> wrote: > > > > Hello, > > > > I am using an older version of VPP(18.01) but I checked the code of > 19.04 and I couldn't find any change in problematic area. > > > > I sometimes get a crash with "Show PCI" command. > > > > From the core, it seems to be crashing here : > > > > "format_vlib_pci_vpd ( > > s=0x2ad325f2cb58 "0000:02:00.0 0 14e4:1657 5.0 GT/s x2 tg3", ' > ' <repeats 13 times>, "HP Ethernet 1Gb 4-port 331i Adapter", > args=<optimized out>)" > > > > I checked this function and it seems that a particular pointer variable > (u8* id) always ends up getting an invalid value - "0x3000000000 <Address > 0x3000000000 out of bounds>" > > Further down in this function, we try to access this pointer and that > sometimes causes the VPP to crash. > > > > Could it be that the "va_arg" call to get this "id" is returning > something invalid? > > > > Can someone please help me with this ? > > > > Attaching the full stack trace as well. > > Probably bug in PCI VPD parser. Hard to debug blindly, without having > access to problematic NIC. > >
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