I think this fault may be related to this bug: https://sourceware.org/bugzilla/show_bug.cgi?id=23296 It typically shows up during lazy binding of multi-threaded applications on SMP machines. Working on it... Dave On 2019-10-17 1:47 a.m., Meelis Roos wrote: > I just tested 5.4.0-rc3-00037-g3b1f00aceb7a on 3 parisc machines and did a gentoo world emerge > after boot for test. On my rp3440, I got a build failure of one package and the > following in dmesg. While userspace apps can crash with invalid behaviour any time, this > one looks like kernel trouble to me - Data TLB miss fault. It was not easily reproducible, next > world emerge ran fine past that package. > > > [42140.123639] do_page_fault() command='ld' type=15 address=0x00000000 in libbfd-2.31.1.gentoo-sys-devel-binutils-st.so[f8644000+c5000] > trap #15: Data TLB miss fault > [42140.123671] CPU: 0 PID: 23985 Comm: ld Not tainted 5.4.0-rc3-00037-g3b1f00aceb7a #226 > [42140.123675] Hardware name: 9000/800/rp3440 > > [42140.123683] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI > [42140.123688] PSW: 00000000000001101111111000001111 Not tainted > [42140.123694] r00-03 000000ff0006fe0f 00000000f8713cf8 00000000f86a672b 00000000faa13a48 > [42140.123700] r04-07 00000000f87144f8 0000000000000000 00000000426861d0 0000000000000000 > [42140.123707] r08-11 0000000000002b92 00000000f8712630 000000004251ffd0 00000000f87124a4 > [42140.123713] r12-15 00000000faa13a58 00000000faa13a0c 00000000faa13a04 0000000000208000 > [42140.123719] r16-19 00000000420a13fc 00000000420a0000 0000000000000000 00000000f87144f8 > [42140.123725] r20-23 00000000000000fd 00000000f8691804 00000000f86b13f4 0000000000000000 > [42140.123731] r24-27 00000000faa13a48 00000000faa13a48 0000000000000000 000000004209f000 > [42140.123738] r28-31 0000000000000000 00000000f81b0a6c 00000000faa13c40 00000000f8645114 > [42140.123744] sr00-03 000000000cc3e000 000000000cc3e000 0000000000000000 000000000cc3e000 > [42140.123750] sr04-07 000000000cc3e000 000000000cc3e000 000000000cc3e000 000000000cc3e000 > > [42140.123757] VZOUICununcqcqcqcqcqcrmunTDVZOUI > [42140.123761] FPSR: 00000000000000000000000000000000 > [42140.123764] FPER1: 00000000 > [42140.123770] fr00-03 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > [42140.123777] fr04-07 3fcc58dcd6e825cf 4024000000000000 00067fa0f62430a5 3b10ba0000000000 > [42140.123783] fr08-11 0005e868ef76ad40 00006a1331052bda 001a7e5b84dd9db6 0009eea07d0ae4fa > [42140.123789] fr12-15 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > [42140.123795] fr16-19 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > [42140.123801] fr20-23 0000000000000000 0000000000000000 0000000000000020 0000000200000000 > [42140.123807] fr24-27 0000000000388500 0000000000000000 3fd555555551305b 3ee45a79979bc1a6 > [42140.123813] fr28-31 40026bb4485fa06f 0000000000000000 0000000000000000 3fcffffffffffafc > > [42140.123822] IASQ: 000000000cc3e000 000000000cc3e000 IAOQ: 00000000f8691807 00000000f869180b > [42140.123827] IIR: 0f401015 ISR: 000000000cc3e000 IOR: 0000000000000000 > [42140.123832] CPU: 0 CR30: 0000004104b94000 CR31: ffffffffffffffff > [42140.123835] ORIG_R28: 0000000000000000 > [42140.123839] IAOQ[0]: 00000000f8691807 > [42140.123843] IAOQ[1]: 00000000f869180b > [42140.123847] RP(r2): 00000000f86a672b > > The ambient temperature in the room was 32 degrees Celsius, so hot but not too hot hopefully. > Nothing in BMC logs so hopefully not hardware trouble but slightly unsure. > -- John David Anglin dave.anglin@xxxxxxxx