emerge -uDNav world this morning upgraded to media-libs/alsa-lib-1.2.3 from 1.2.2-r1. When I restarted the computer, I had no sound and found that I was getting segfaults for pulseaudio. I tried rebuilding multiple things to aleveate the problem and nothing worked. [ 479.322306] pulseaudio[971]: segfault at 9 ip 00007fdda0dce1f4 sp 00007fff52419ec0 error 4 in libc-2.31.so[7fdda0d5f000+16b000] [ 479.322310] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 487.334456] pulseaudio[1950]: segfault at 9 ip 00007fed217fa1f4 sp 00007ffee9ad2810 error 4 in libc-2.31.so[7fed2178b000+16b000] [ 487.334460] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 495.315727] pulseaudio[2740]: segfault at 9 ip 00007f1d0a2321f4 sp 00007ffcefaf7640 error 4 in libc-2.31.so[7f1d0a1c3000+16b000] [ 495.315731] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 503.324534] pulseaudio[3673]: segfault at 9 ip 00007f1268b1c1f4 sp 00007fff92c88200 error 4 in libc-2.31.so[7f1268aad000+16b000] [ 503.324538] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 511.322660] pulseaudio[4487]: segfault at 9 ip 00007f2480f791f4 sp 00007ffdb3d9d240 error 4 in libc-2.31.so[7f2480f0a000+16b000] [ 511.322664] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 518.319733] pulseaudio[5269]: segfault at 9 ip 00007fc29d4521f4 sp 00007fffdd315660 error 4 in libc-2.31.so[7fc29d3e3000+16b000] [ 518.319736] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 526.320559] pulseaudio[5953]: segfault at 9 ip 00007f15301501f4 sp 00007fff0daa5060 error 4 in libc-2.31.so[7f15300e1000+16b000] [ 526.320562] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 533.321722] pulseaudio[6734]: segfault at 9 ip 00007ff4c44cf1f4 sp 00007ffd01178ee0 error 4 in libc-2.31.so[7ff4c4460000+16b000] [ 533.321726] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 [ 541.324952] pulseaudio[7444]: segfault at 9 ip 00007feaf135d1f4 sp 00007ffd7a818e90 error 4 in libc-2.31.so[7feaf12ee000+16b000] [ 541.324958] Code: c9 0f 11 4b 20 48 89 ee 66 48 0f 6e c0 48 83 ce 01 0f 16 44 24 08 48 89 73 08 0f 11 43 10 49 89 2c 24 48 85 d2 74 8f 48 89 d3 <48> 8b 43 08 89 c2 c1 ea 04 83 ea 02 49 8d 54 d7 10 49 39 d5 0f 85 I found this thread that has the exact problem I had, which suggested that downgrading alsa-lib to 1.2.2 would fix it. Downgrading alsa-lib worked and now I have audio and pulseaudio.
That Website: https://www.linuxquestions.org/questions/slackware-14/pulse-won%27t-start-after-june-9-update-current-4175676829/
*** This bug has been marked as a duplicate of bug 727838 ***